Soft vs Medium vs Firm Mattress in NZ: Which Firmness Is Right for You?

July 17, 2026

What if the mattress you've been sleeping on is the reason you wake up tired? Most people blame their schedule, their stress, or the neighbor's dog. Rarely do they look at the thing they're lying on for eight hours a night. Mattress firmness has a direct impact on spinal alignment, pressure relief, and how rested you feel come morning. Getting it wrong is easy. Getting it right, once you know what to look for, is straightforward. Here's what you actually need to know before you buy.

What Does Mattress Firmness Actually Mean?

Mattress firmness refers to how soft or hard the surface feels the moment you lie down. It is the initial resistance your body experiences, not how well the mattress supports your spine over the course of the night. That distinction matters more than most people realize.

There is no universal industry standard for the mattress firmness scale. One brand's "medium" might feel like another brand's "firm." Most manufacturers use a scale from 1 to 10, where 1 is the plushest and 10 is the hardest. Terms like "luxury plush," "cushion firm," or "ultra firm" are marketing labels, and they vary widely between brands.

What you should focus on instead is how a mattress interacts with your specific body weight, sleeping position, and physical needs. Firmness is personal. That is where the real decision lies.

Soft vs Medium vs Firm Mattress Comparison

Feature	Soft (1-3)	Medium (4-6)	Firm (7-10)
Surface Feel	Plush, deep sink	Balanced give and support	Minimal sink, rigid surface
Best For	Side sleepers, lightweight bodies	Combination sleepers, couples	Stomach sleepers, heavier bodies
Pressure Relief	High	Moderate	Low
Spinal Support	Depends on the base layer	Good for most	Excellent for back/stomach
Motion Transfer	Higher	Moderate	Lower
Durability	Can soften faster	Stable over time	Longest lasting feel

Which Mattress Firmness Is Best for Your Sleeping Position?

Here is the most practical question to ask yourself before shopping: What position do you spend most of the night in? Your sleep position places pressure on specific areas of your body, and the right firmness should relieve that pressure without letting your spine fall out of alignment.

Side sleepers tend to do best on soft to medium mattresses. In this position, the shoulders and hips take the brunt of your body weight. If the mattress is too firm to allow any give at those points, pressure builds up fast, and you'll feel it by morning.
Back sleepers typically benefit from medium to medium-firm mattresses. Body weight spreads out more evenly in this position, which takes some pressure off the mattress. That said, the lower back still needs enough support to stay in its natural curve rather than flattening against the surface.
Stomach sleepers generally require a firm mattress. When the hips sink too far into a soft surface, the lower back arches unnaturally, and pain follows quickly.

Mattress Materials and How They Affect Firmness

Material	How It Affects Firmness
Memory Foam	Tends to feel progressively softer the longer you lie on it; a rated medium can feel like a soft within minutes
Latex	Feels firmer in practice than its rating suggests; holds its shape rather than conforming deeply
Innerspring	Coil count and gauge directly determine firmness; they can feel inconsistent across the surface
Hybrid	Offers better pressure relief than pure innerspring while maintaining stronger support than all-foam

Signs Your Mattress Is Too Soft

A mattress that is too soft might seem like a luxury at first, but the signs of a poor fit show up fast.

You wake up with lower back pain or stiffness that eases after you get up and move around.
Your hips sink deeper than your shoulders, causing your spine to curve downward.
Changing positions takes real effort. You feel like you are working against the mattress rather than moving freely.
Visible sagging or a body impression that stays even after you get up is a clear sign the material has broken down.
Sleeping hot is common when you sink too deep into a firm memory foam mattress, as the material surrounds your body and traps heat through the night.

Signs Your Mattress Is Too Firm

On the opposite end, a mattress that is too hard creates a different set of problems.

You wake up with pain or numbness in the shoulders, hips, or knees, particularly if you are a side sleeper.
A gap under your lower back when lying flat means the mattress is not following the curve of your spine. That unsupported space leads to tension and aching over time.
Frequent position changes through the night usually mean your body is searching for relief it is not finding.
The mattress feels like it is working against your body shape rather than accommodating it. There is no real give at the contact points.
You feel unrested in the morning despite getting enough hours of sleep.

Medium Firm Mattresses: Why They're the Most Popular Choice

Walk into any mattress store, and medium firm is the firmness level most people end up leaving with. That is not a coincidence. Rated roughly 5 to 6 out of 10, medium firm hits a balance that works across a wider range of body types and sleep positions than soft or firm can manage on their own. There is enough give at the surface to take pressure off the shoulders and hips, and enough resistance underneath to keep the spine from dropping out of alignment.

It is also the safest compromise for couples who have different sleeping positions or moderate weight differences. Rather than one person getting exactly what they need and the other settling, a medium-firm queen mattress tends to work reasonably well for both.

At TSB Living, we carry a curated range of mattresses across all firmness levels. Browse our collection and filter by firmness to find the right match for your sleep style.

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Frequently Asked Questions

Is medium-firm the best mattress firmness?

It works well for the broadest range of sleepers, but your weight and sleep position should drive the final call, not popularity.

Which mattress firmness is best for back pain?

Whichever keeps your spine in a neutral position throughout the night. That tends to be medium to medium firm for most people, but heavier sleepers often need to go firmer.

Is a firm mattress better for stomach sleepers?

Generally, yes. A firmer surface stops the hips from sinking, which is what keeps the lower back from arching into an uncomfortable position.

Does body weight affect mattress firmness?

Significantly. A heavier person will compress the same mattress further than a lighter person, making any given firmness feel softer in practice.

Will a mattress become softer over time?

Most do, especially in the first few months as the materials settle. After that, it should stabilize. Persistent sagging or deep body impressions that do not recover are signs of wear, not normal break-in.

Soft vs Medium vs Firm Mattress in NZ: Which Firmness Is Right for You?
What if the mattress you've been sleeping on is the reason you wake up tired? Most people blame their schedule, their stress, or the neighbor's dog. Rarely do they look at the thing they're lying on for eight hours a night. Mattress firmness has a direct impact on spinal alignment, pressure relief, and how rested you feel come morning. Getting it wrong is easy. Getting it right, once you know what to look for, is straightforward. Here's what you actually need to know before you buy. What Does Mattress Firmness Actually Mean? Mattress firmness refers to how soft or hard the surface feels the moment you lie down. It is the initial resistance your body experiences, not how well the mattress supports your spine over the course of the night. That distinction matters more than most people realize. There is no universal industry standard for the mattress firmness scale. One brand's "medium" might feel like another brand's "firm." Most manufacturers use a scale from 1 to 10, where 1 is the plushest and 10 is the hardest. Terms like "luxury plush," "cushion firm," or "ultra firm" are marketing labels, and they vary widely between brands. What you should focus on instead is how a mattress interacts with your specific body weight, sleeping position, and physical needs. Firmness is personal. That is where the real decision lies. Soft vs Medium vs Firm Mattress Comparison Feature Soft (1-3) Medium (4-6) Firm (7-10) Surface Feel Plush, deep sink Balanced give and support Minimal sink, rigid surface Best For Side sleepers, lightweight bodies Combination sleepers, couples Stomach sleepers, heavier bodies Pressure Relief High Moderate Low Spinal Support Depends on the base layer Good for most Excellent for back/stomach Motion Transfer Higher Moderate Lower Durability Can soften faster Stable over time Longest lasting feel Which Mattress Firmness Is Best for Your Sleeping Position? Here is the most practical question to ask yourself before shopping: What position do you spend most of the night in? Your sleep position places pressure on specific areas of your body, and the right firmness should relieve that pressure without letting your spine fall out of alignment. Side sleepers tend to do best on soft to medium mattresses. In this position, the shoulders and hips take the brunt of your body weight. If the mattress is too firm to allow any give at those points, pressure builds up fast, and you'll feel it by morning. Back sleepers typically benefit from medium to medium-firm mattresses. Body weight spreads out more evenly in this position, which takes some pressure off the mattress. That said, the lower back still needs enough support to stay in its natural curve rather than flattening against the surface. Stomach sleepers generally require a firm mattress. When the hips sink too far into a soft surface, the lower back arches unnaturally, and pain follows quickly. Mattress Materials and How They Affect Firmness Material How It Affects Firmness Memory Foam Tends to feel progressively softer the longer you lie on it; a rated medium can feel like a soft within minutes Latex Feels firmer in practice than its rating suggests; holds its shape rather than conforming deeply Innerspring Coil count and gauge directly determine firmness; they can feel inconsistent across the surface Hybrid Offers better pressure relief than pure innerspring while maintaining stronger support than all-foam Signs Your Mattress Is Too Soft A mattress that is too soft might seem like a luxury at first, but the signs of a poor fit show up fast. You wake up with lower back pain or stiffness that eases after you get up and move around. Your hips sink deeper than your shoulders, causing your spine to curve downward. Changing positions takes real effort. You feel like you are working against the mattress rather than moving freely. Visible sagging or a body impression that stays even after you get up is a clear sign the material has broken down. Sleeping hot is common when you sink too deep into a firm memory foam mattress, as the material surrounds your body and traps heat through the night. Signs Your Mattress Is Too Firm On the opposite end, a mattress that is too hard creates a different set of problems. You wake up with pain or numbness in the shoulders, hips, or knees, particularly if you are a side sleeper. A gap under your lower back when lying flat means the mattress is not following the curve of your spine. That unsupported space leads to tension and aching over time. Frequent position changes through the night usually mean your body is searching for relief it is not finding. The mattress feels like it is working against your body shape rather than accommodating it. There is no real give at the contact points. You feel unrested in the morning despite getting enough hours of sleep. Medium Firm Mattresses: Why They're the Most Popular Choice Walk into any mattress store, and medium firm is the firmness level most people end up leaving with. That is not a coincidence. Rated roughly 5 to 6 out of 10, medium firm hits a balance that works across a wider range of body types and sleep positions than soft or firm can manage on their own. There is enough give at the surface to take pressure off the shoulders and hips, and enough resistance underneath to keep the spine from dropping out of alignment. It is also the safest compromise for couples who have different sleeping positions or moderate weight differences. Rather than one person getting exactly what they need and the other settling, a medium-firm queen mattress tends to work reasonably well for both. At TSB Living, we carry a curated range of mattresses across all firmness levels. Browse our collection and filter by firmness to find the right match for your sleep style.

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July 17, 2026
Bonnell Spring vs Pocket Spring Mattress NZ: Which One Should You Buy?
Most mattress advice in New Zealand starts with firmness. Soft, medium, or firm. But firmness is a surface-level detail. What actually determines how a mattress performs night after night is the spring system underneath. Bonnell springs and pocket springs are built on entirely different principles, and that difference ripples through everything from spinal support to how much you feel your partner roll over at 2 am. If you have been choosing mattresses based on how they feel in a showroom, you may have been missing the bigger picture entirely. Here is what to look for instead. What Is a Bonnell Spring Mattress? A Bonnell spring mattress is built around a network of hourglass-shaped metal coils, wider at the top and bottom and narrower through the middle. Bonnell spring mattresses use hourglass-shaped metal coils connected by a wire frame, forming one spring unit that works together. The shape of each coil is wider at the top and bottom and narrower through the middle. Key features: Hourglass coils that give a firm, springy feel A long-standing innerspring design used across homes for decades Weight spreads across the surface through the linked coil network Firm and bouncy underfoot, a feel many sleepers actively prefer Good airflow through the open coil structure, cooler than most foam options Think of it like a trampoline. When one area compresses, the movement ripples across the whole surface. That's a useful image for understanding both the bounce and the motion transfer that comes with a Bonnell design. What Is a Pocket Spring Mattress? A pocket spring mattress takes a fundamentally different approach. Instead of joining all the springs together, each coil is wrapped individually in its own fabric pocket. The springs stand side by side but operate independently. Key characteristics include: Each spring is individually wrapped and responds only to the pressure placed directly on it The mattress adapts to your body's shape rather than pushing back with equal force across the surface Shoulders, hips, and lower back receive more tailored cushioning Spinal alignment is better maintained because the mattress responds to varying pressure levels across your body Movement in one area stays contained, so a restless partner is far less likely to disturb your side of the bed. That's the key advantage, particularly for couples. Bonnell Spring vs Pocket Spring Mattress: Side-by-Side Comparison Feature Bonnell Spring Pocket Spring Coil Design Interconnected hourglass coils Individually wrapped coils Feel Firm and bouncy Adaptive and contouring Motion Transfer Higher Lower Pressure Relief Basic Better Spinal Support Even but less precise More targeted Partner Disturbance More noticeable Minimal Airflow Excellent Good Durability Moderate Good to very good Construction and Coil Design Bonnell coils are tied together with helical wires, creating a unified support layer. Pocket springs are individually encased, so the coil count and casing quality matter significantly. A higher pocket spring count generally means finer, more precise support. Comfort and Pressure Relief Pocket springs win here. Because each coil moves independently, pocket springs cushion pressure points like the hips and shoulders without letting the body sink unevenly. Bonnell springs distribute weight more uniformly across the surface but offer less targeted relief at key contact points. Support and Spinal Alignment A pocket spring mattress follows the natural curve of your spine more closely than a Bonnell system does. Bonnell mattresses provide solid, consistent support but may feel too firm or too flat for sleepers who need more give in specific areas. Motion Isolation This is where the two diverge most sharply. Bonnell springs are connected, so movement travels across the whole surface. Pocket springs contain movement to the area where it occurs, making them far better for people who share a bed. Durability and Lifespan A well-made pocket spring mattress tends to hold its shape longer because the springs bear load individually rather than as a unit. Bonnell queen-size mattress can develop uneven wear when certain coils carry more weight over time. That said, build quality, foam layers, and the base underneath all play a role in how long either mattress lasts. Temperature Regulation and Breathability Spring mattresses generally sleep cooler than foam because air moves through the coil layer rather than getting trapped. Bonnell mattresses have an open coil structure that allows particularly good airflow. A pocket spring king-size mattress also stays cool, more so when the cover fabric is breathable or there is a light comfort layer on top. For anyone who runs warm at night, the cover material and top layers deserve just as much attention as the spring type itself. Which Mattress Is Best for Different Sleepers? Sleeper Type Best Choice Why Side Sleepers Pocket Spring Conforms to the curve of the hips and shoulders, relieving pressure at key contact points Back Sleepers Either (lean Bonnell) Bonnell's even, firm surface supports the natural curve of the lower back well; pocket spring works too if you prefer a softer feel Stomach Sleepers Bonnell Spring The firmer, flatter surface prevents the hips from sinking too deep, keeping the spine in a safer position Combination Sleepers Pocket Spring Independent coils adjust quickly as you shift positions throughout the night Couples Pocket Spring Significantly reduces motion transfer so one partner's movement does not disturb the other Children Bonnell Spring Durable, affordable, and firm enough to support growing bodies during lighter use Guest Rooms Bonnell Spring Cost-effective for occasional use where advanced support features are not a priority How to Choose Between a Bonnell and Pocket Spring Mattress? Ask yourself these questions before deciding on a Bonnell Spring vs. a Pocket Spring Mattress: Who will sleep on it? If it's a couple, lean toward a pocket spring. If it's a single sleeper, guest, or child, Bonnell may serve just as well. How often will it be used? Daily sleepers benefit from the better support and durability of the pocket spring. Guest rooms can get by comfortably on Bonnell. What is your sleep position? Side sleepers need the pressure relief of a pocket spring. Back and stomach sleepers may actually prefer the firmer feel of Bonnell. What is your budget? If cost is a key factor, Bonell delivers solid value for light-to-moderate use. Are you a hot sleeper? Both spring types offer decent airflow, but check the foam and cover layers for additional breathability. Looking for a spring mattress that suits the New Zealand climate and your sleep needs? TSB Living has mattress and bed and mattress options across sizes, firmness levels, and budgets. Walk in, and our team will help you find the right one.

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July 17, 2026
Mattress Moving & Storage Guide: Do It the Right Way
Most mattresses do not get ruined by years of use. They get ruined in a single move. One unprotected trip in a truck, one damp storage unit, one wrong position, and a perfectly good mattress is warped, moldy, or permanently compressed? Whether you are relocating across town or tucking a spare bed away for months, the way you handle your mattress makes a lasting difference in how long it performs and how well you sleep on it later. This guide walks you through everything you need to know, from how to pack a mattress for moving to how to store a mattress long term, so you do not end up with a warped, moldy, or permanently damaged bed. How to Pack a Mattress for Moving? Packing a mattress sounds simple until you show up at your new place with a dirty, torn, or damp bed. Get this part right, and the rest of the move takes care of itself. Step 1: Get the Right Mattress Packing Cover Pick up a mattress bag before anything else. It is basically a thick plastic or fabric sleeve that fully encloses your mattress and keeps out dust, moisture, bedbugs, and the general chaos of a moving truck. Sizes vary, so grab one that actually fits yours. Step 2: Clean It Before You Seal It Give the mattress a good vacuum, sort out any stains, and then let it breathe for a bit. This step gets skipped more than it should. Sealing in even a little moisture is enough to start a mold problem, and you will not notice it until it is too late. Step 3: Seal It Properly Slide the mattress into the bag, push out as much air as you can, and tape it shut. Some bags have a zip closure, which makes this easier and more secure. Either way, make sure nothing is getting in or out. Step 4: Use a Mattress Box for Extra Protection If you are moving a significant distance, consider slipping the bagged mattress into a flat cardboard mattress box. This adds structural protection, especially at the corners and edges. Best Way to Move a Mattress by Size Not all mattresses move the same way. Size plays a huge role in logistics. Here is a quick reference: Mattress Size Typical Weight Moving Tip Twin 40–45 lbs One person can manage with a dolly Full 50–60 lbs Two people recommended Queen 60–80 lbs Two people plus a hand truck King 130–180 lbs Three people or professional help is strongly advised Storing a Mattress: The Right Way Storing a mattress is where most people go wrong. Here are the steps to follow, whether you are putting it away for a few weeks or several months. Clean It Thoroughly First Before storing a mattress, vacuum it, treat any stains, and let it air dry completely. Any residual moisture sealed inside a storage bag is a recipe for mildew. Wrap It in a Mattress Bag Just like packing for a move, a high-quality mattress packing cover is essential for storage. It keeps out dust mites, moisture, and pests over time. Store It Flat This is the most important storage rule: always store a mattress flat. Keeping it upright on its side for extended periods allows the internal components to shift and sag, particularly in innerspring and hybrid models. Control the Environment The best way to store a mattress involves a climate-controlled storage unit. Extreme heat, cold, and humidity all degrade foam and fabric faster than normal use would. Aim for a consistent, moderate temperature and low humidity. How to Store a Memory Foam Mattress? Memory foam is particularly vulnerable to environmental damage. Unlike innerspring mattresses, foam breaks down faster when exposed to heat, humidity, or uneven pressure during storage. If you are putting one away for a while, here is what actually matters: Store it flat; foam shifts and compresses permanently if left on its side Use a breathable mattress bag so trapped moisture does not turn into mildew Find a climate-controlled spot, ideally away from windows and exterior walls Keep the surface clear; stacking boxes or bags on top will leave lasting impressions The best way to store a mattress topper is to roll it gently (if the material allows), place it in a storage bag or sealed plastic bin, and keep it in a cool, dry location. Avoid compressing it under heavy objects, which can permanently flatten the materials. Memory foam toppers should never be tightly rolled or folded. Quick Reference: Mattress Storage Do's and Don'ts Do Don't Clean before storing Store a damp mattress Use a quality mattress bag Leave it unwrapped Store flat Store on its side long-term Use climate-controlled storage Store in a damp garage or basement Check on it periodically Ignore it for months Keep the storage area dry Place heavy items on top Why Proper Handling Actually Matters? Think about it this way: would you toss a $1,000 investment in the back of a truck without protection? Probably not. Yet that is exactly what happens to mattresses during most moves. Exposure to moisture, dirt, and pressure during transit can break down foam layers, ruin coil systems, and introduce allergens that never fully go away. The good news is that with the right steps, your mattress can come through a move or a long storage period in near-perfect condition.

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May 19, 2026
Bed Base vs Slats: Which One Is Better for Your Sleep in NZ?
When it comes to setting up the perfect bedroom, most people spend a lot of time picking the right mattress or finding a stylish bed frame that suits their space. But one question that often gets overlooked is this: should you go with bed slats or a solid base? It sounds like a small detail, but it can make a real difference to how well you sleep, how long your mattress lasts, and even how much airflow you get through your bed. If you are shopping for a new bed setup in New Zealand, this guide breaks down the slats vs solid bed base debate in plain terms so you can make the right call for your home. What Is a Slatted Bed Base? A slatted bed base is exactly what it sounds like. It is a bed frame where a row of horizontal bars, usually wood or metal, stretches across the width of the frame to hold up your mattress. The gaps between these bars are what make this style different from a solid base. A wood slat bed frame is probably the most common type you will find in NZ homes right now. The airflow that comes from those gaps is a genuine plus, especially in summer when humidity makes sleeping uncomfortable. Another bonus is that slatted frames tend to be lighter. If you move around a lot or like rearranging your room, that matters more than you think. What Is a Solid Bed Base? A solid base, sometimes called a platform base, is one continuous flat surface under your mattress. No gaps, no bars, just a solid panel of wood or a fabric-wrapped board running the full length and width of the frame. Solid platform beds with no slats give your mattress full contact support across every point of its surface. This is especially important for memory foam, which can perform poorly if parts of it are unsupported or hanging over gaps. A bed frame without slats also tends to be much quieter. There are no individual pieces that can shift or creak over time, which is a small thing until you are woken up at 3 am by a popping slat. Slats vs Solid Bed Base: How Do They Actually Compare? Here is a side-by-side look at the key differences: Feature Slatted Bed Base Solid Bed Base Best Mattress Match Spring, Latex Memory Foam, Foam Airflow Excellent Limited Noise Can creak if low quality Generally quiet Weight Light, easy to move Heavy Durability Good, slats may need replacing Very durable Moisture Control Great, prevents buildup Can trap moisture Box Spring Needed No No Price Generally more affordable Varies, often higher Support and Mattress Compatibility Bed slats pair really well with spring and latex mattresses. These materials have some natural give to them, so a bit of flex underneath actually helps. The issue comes when slats are spaced too far apart. Anything over about 7cm and softer mattresses can start to dip between the gaps, which wrecks the support and shortens the life of your mattress. Solid bases are the better call for foam and memory foam mattresses. These materials need a firm, even platform to do their job properly. Airflow and Temperature This is the area where slatted frames genuinely shine. Air moves through the gaps and keeps things cooler underneath your mattress. For anyone who sleeps hot or lives somewhere humid, this is a real difference you will feel. Solid bases block the airflow completely, which can lead to heat and moisture building up under the mattress over time. Durability A well-made bed frame or any wood furniture will last for years without any trouble. The weak point is individual slats, which can occasionally warp or snap, especially cheaper ones. The upside is that you can usually replace a single slat without replacing the whole frame. Solid bases have fewer moving parts to worry about, but they are heavy and can be a headache to move around. So Which One Should You Go With? Sleep hot or have a spring or latex mattress? Go with a slatted bed frame. It will keep your mattress cooler and give it the flexibility it needs. Use memory foam or prefer a quieter, lower-maintenance setup? A solid platform base is probably the better fit. The right bed base works alongside your mattress, bedside tables, wardrobes, and your overall bedroom furniture to create a sleep environment that feels cohesive and comfortable.

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May 1, 2026