Mattress Firmness: How to Choose the Right Feel

When you’re shopping for a new mattress, one question keeps coming up: how firm should it be? Getting the feel right can be the difference between waking up refreshed or getting out of bed with an aching back. But here’s the key: firmness isn’t the same as support , and what feels perfect for your partner might feel completely wrong for you. If you’re ready to compare options, start with our Levede mattresses.

Think of firmness as the surface feel when you first lie down. Does it hug your body with a bit of sink, or push back with more resistance? That initial feel comes from the comfort layers on top, while the support core underneath helps keep your spine aligned through the night.

This guide covers the mattress firmness scale, how sleep position and body weight change what you need, and how to tell if your current bed feels too soft or too firm including a few Australian realities (like how warm summer nights can change how foam feels). By the end, you’ll have a clear idea of what firmness rating to aim for. If you want a faster shortlist, our mattress buying guide breaks it down by sleep style and budget.”

Key takeaways

• Firmness is the surface feel (sink vs pushback). Support is what keeps your spine aligned .

• Most people land in medium to medium-firm (5–7) , but sleep position and body weight can shift that.

• Side sleepers often prefer 3–6 for shoulder/hip pressure relief.

• Back sleepers often suit 5–7 to balance support with contouring.

• Stomach sleepers often suit 6–8 to keep hips from dropping too low.

• If a mattress feels wrong, check your bed base/slats and consider a topper before replacing it.

What Is Mattress Firmness?

Firmness is the comfort feel you get from the top layers of a mattress. When you lie down, it determines whether you sink in or feel more pushback . This sensation comes mainly from the comfort layers  foams, latex, quilting, or padding sitting above the support core.

Here’s what makes it tricky: it’s subjective . Your body weight, sleep position, and even mattress material all influence how firm a bed feels. A firmness level one person describes as “medium” might feel firm to a lighter sleeper, or softer to someone with a higher body weight.

For example, two people can test the same mattress:

• A petite side sleeper around 50 kg may feel comfortably cushioned with gentle sink.

• A 100 kg stomach sleeper may compress the same comfort layers far more, making the surface feel softer and letting the hips dip too much.

That’s why there’s no single “best” firmness for everyone the goal is the right feel for your body and sleep style , not just a number on a tag.

Firmness vs Support (Why They’re Different)

A lot of people use “firm” and “supportive” as if they mean the same thing but they don’t. Confusing firmness vs support is one of the fastest ways to end up with the wrong mattress.

Support is about how well the mattress keeps your body in a healthy position through the night. It comes from the support core (the base structure: springs, high-density foam, latex core, or a hybrid system). Good support keeps your spine in a neutral alignment ,A supportive bed base also affects alignment and how firm a mattress feels stopping heavy areas like hips and shoulders from sagging too far while still cushioning lighter areas.

Firmness is the surface feel you notice straight away the push vs sink sensation from the comfort layers.

Important point:

• A mattress can feel soft yet still be supportive if it has responsive comfort layers over a strong core.

• A mattress can feel very firm yet still be poorly supportive if it doesn’t distribute weight properly or lacks proper structure.

Why it matters:

• Too firm can create pressure points at shoulders and hips, leading to numb arms or sore joints.

• Too soft can feel comfy for five minutes, but allow your hips to sink and your spine to bend out of alignment.

The best outcome is a balance: enough cushioning for pressure relief, with stable support underneath for alignment.

How We Rate Firmness at Levede (and Why Numbers Vary)

Firmness ratings aren’t universal. A “6/10” from one brand can feel closer to a “5/10” from another because materials, quilting, and comfort-layer thickness change the surface feel.

In this guide, we use the 1–10 scale as a practical reference:

• 1–3 = soft/plush (more sink and contouring)

• 4–6 = medium (balanced cushioning and support)

• 7–10 = firm (less sink, more pushback)

Your sleep position, body weight, and the mattress build (foam, latex, spring, hybrid) will affect how firm it feels in real life.

Mattress Firmness Scale (1–10) Explained

The firmness scale helps you compare where a mattress sits between cloud-soft and very firm. Most brands use 1–10 , with 1 being the softest and 10 the firmest. Treat it as a guide, not an exact measurement.

Firmness scale cheat sheet (1–10)

It’s also worth noting that construction affects feel:

• A memory foam mattress rated 6 often feels more contouring.

• Latex tends to feel bouncier (often “firmer” at the same rating).

• Innerspring can feel more “on top” due to coil pushback.

• Hybrids vary based on coil type + comfort layers.

See how that feels across our hybrid queen mattresses and memory foam mattresses.

Soft (1-3) - Who It Suits

A soft or plush feel (rated 1–3) provides deep contouring and a stronger “sink in” sensation. It often suits lighter sleepers and dedicated side sleepers who need extra pressure relief around shoulders and hips.

Side sleeping puts a lot of load on shoulder and hip joints. Without enough cushioning, those pressure points get sore. A softer surface can allow those areas to settle in while still supporting the waist and lower back.

Where soft can be a problem:

• Heavier sleepers may sink too far, especially at the hips.

• Back or stomach sleepers can end up with hips dropping, which can trigger lower back pain.

• Some people feel “stuck”, making it harder to change position.

Medium (4-6) - The "Most People" Range

Medium to medium-firm (4–6) is often the safest starting point because it suits the widest variety of sleepers.

This range works well for:

• Combination sleepers who roll between positions

• Back sleepers needing balanced alignment

• Couples trying to meet in the middle

It tends to provide enough cushioning to ease pressure, while still offering stability so you don’t sink excessively.

Note: If you’re shopping online and can’t test in person, medium to medium-firm usually gives you the best chance of being comfortable quickly.

Firm (7-10) - Who It Suits

Firm to extra firm (7–10) gives strong pushback with minimal sink — a more “on top” feel.

It often suits:

• Stomach sleepers who need hips kept level to avoid spine arching

• Heavier sleepers who compress comfort layers more and need extra resistance

Downsides:

• Lighter side sleepers can develop shoulder/hip pressure points

• Some back sleepers can feel a gap under the lower back if the surface doesn’t allow a little contouring

How to Choose the Right Mattress Firmness

If you’re wondering what firmness rating to choose, keep it simple:

1. Start with sleep position

2. Adjust for body weight

3. Factor in pressure points or pain patterns

Choose by Sleep Position

Sleep position is the biggest factor because it changes where your body carries pressure and how your spine needs to be supported.

Sleep position guide

Choose by Body Weight / Body Type

Body weight changes how a mattress feels. Heavier bodies compress the comfort layers more, so the same mattress can feel softer than expected.

Body weight guide

Body shape matters too. Broader shoulders or curvier hips can create stronger pressure points, which sometimes calls for slightly softer comfort layers even if your weight suggests firmer.

Choose by Pain Points (Back, Shoulder, Hip)

If you wake up with pain, the surface feel and support balance may be part of the issue (though pillow height and sleep posture matter too).

Back pain:
Many people assume firmer is always better, but the goal is neutral alignment . For most people, a medium to medium-firm feel (around 5–7) helps keep hips supported while still letting the lower back settle naturally. Too soft can let your spine sag; too firm can leave gaps under the lumbar curve, forcing muscles to work overnight. For more detail, see our mattress tips for back pain guide.

Shoulder/hip pain:
These often relate to pressure points (especially for side sleepers). A medium-soft to medium feel (around 4–6) can allow shoulders and hips to settle just enough to reduce pressure without losing support at the waist.

If pain is ongoing or severe, it’s worth speaking with a health professional — a mattress can help comfort and alignment, but it isn’t a cure-all for chronic issues.

Couples and Shared Beds (Different Preferences)

Shared-bed shopping is tough because people often want different feels. Differences in body weight and sleep position usually explain the mismatch.

A practical approach:

• Start with a compromise feel (often 5–6 )

• Prioritise motion control (so you don’t feel every movement)

• Consider a topper if one person needs extra cushioning

If compromise doesn’t work, options include:

• A topper on one side (where possible)

• A mattress with dual-feel options (if available)

• Two mattresses pushed together (it’s not glamorous, but it works)

What Affects How Firm a Mattress Feels

Two mattresses with the same firmness rating can feel very different because the number is only part of the story.

Key factors:

• Materials: foam contours differently to latex or spring systems

• Temperature: in Australia, warm nights can soften foam noticeably

• Break-in: new mattresses often feel firmer for the first few weeks

• Comfort layer thickness: more padding can feel softer before you “hit” the support core

Foam vs Innerspring vs Hybrid (Why Feel Varies)

The build changes the feel even at the same rating.

Signs Your Mattress Is Too Soft or Too Firm

Sometimes the issue isn’t that you chose wrong it’s that your mattress has changed over time. Even a good bed can lose performance as materials wear.

Before blaming feel alone, check:

• age of the mattress

• a sagging base

• slats spaced too far apart

Quick check: too soft or too firm?

Signs It's Too Soft

Common signs include:

• Hips dropping lower than shoulders (especially on back/stomach)

• Lower back pain that feels worse in the morning

• Rolling toward the middle , especially if there’s a visible dip

• Feeling “stuck”, making it harder to roll over or get out of bed

Signs It's Too Firm

Common signs include:

• Sharp pressure points at shoulders and hips (often side sleepers)

• Numb arms or tingling due to pressure and reduced circulation

• More tossing and turning

• Feeling perched on top with almost no give

Bottom Line: The Easiest Way to Pick the Right Firmness

Choosing the right feel doesn’t have to be complicated:

1. Start with sleep position

2. Adjust for body weight

3. Balance pressure relief with alignment

If you wake up with joint pain, you may suit a slightly softer surface for comfort. If your back pain seems linked to poor alignment, you may suit a slightly firmer feel with strong underlying support. The goal is a neutral spine and comfortable pressure distribution.

Ready to narrow your options? Browse the Levede mattress range and focus on two things: the firmness rating and the materials/build , because those two together give the best clue about how the bed will feel at home.

FAQs

What firmness is best for back pain?

For many people, a medium to medium-firm feel (around 5–7 ) balances spinal alignment with comfort. The aim is a neutral spine: too soft can allow sagging, while too firm can create gaps and pressure points.

Is a firm mattress always better?

No. Firmer beds often suit stomach sleepers and heavier bodies, but can create shoulder and hip pressure for side sleepers or lighter people. The best firmness depends on sleep position, body weight, and comfort preference.

What is medium-firm on a 1–10 scale?

Medium-firm usually sits around 6–7 . It feels supportive with slight cushioning—firmer than medium (5–6) but not as resistant as firm (8–10).

How do I know if my mattress is too soft or too firm?

Too soft often shows up as hips sinking, lower back ache, rolling toward the middle, or a stuck feeling. Too firm often causes shoulder/hip pressure points, numb arms, and frequent tossing and turning.

Why does a mattress feel different in-store vs at home?

In-store testing is brief and often on a different base. At home, temperature, bedding, and several nights of sleep can change how the surface feel seems—especially with foam that softens with warmth.

How long does it take to adjust to a new firmness?

Many people need around 2–4 weeks to adjust. Your body adapts to your old mattress over time, so give it a few weeks before deciding whether the feel is right.

Can a mattress topper change firmness?

A topper can make a firm mattress feel softer by adding cushioning. It usually won’t fix a mattress that’s already too soft or sagging, because it sinks along with the layers underneath.