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Firm Mattresses

Looking for a firm mattress? Explore our range of firm mattresses from leading brands, available in a choice of sizes, mattress types and comfort levels. From firm pocket sprung and memory foam mattresses to firm hybrid and orthopaedic options, find a mattress designed around the way you sleep.

A firm mattress provides a more supportive, less yielding feel than a medium or soft mattress. However, firmness is highly personal, so it's worth considering your sleeping position, preferred comfort level and mattress construction when choosing the right one.

Browse our firm mattresses below, or use our filters to narrow your search by size and mattress type.

What is a Firm Mattress?

A firm mattress has a more supportive, less yielding feel than a medium or soft mattress. It is designed to provide greater resistance when you lie on it, although the exact feel can vary depending on the mattress construction and brand.

Firmness is not the same as support. A well-designed mattress can provide strong support while still having enough cushioning to make it comfortable.

Who Is a Firm Mattress Best For?

A firm mattress can be a good choice if you prefer a more supportive sleep surface with less sink than a softer mattress. However, the right firmness is personal and can depend on your sleeping position, body shape, preferred comfort level and the construction of the mattress.

Firm mattresses for back sleepers

A firm mattress may appeal to back sleepers who prefer a more supportive, less yielding feel. However, firmness alone doesn't determine how supportive a mattress is. The mattress construction, cushioning and how well it suits your body can all affect how comfortable it feels.

If you sleep on your back, look for a mattress that provides a balance of support and cushioning without feeling excessively hard.

Firm mattresses for front sleepers

Front sleepers often prefer a mattress that feels supportive and doesn't allow them to sink too deeply into the sleep surface. A firm mattress can provide the more responsive feel some front sleepers prefer, although the ideal firmness will vary from person to person.

When choosing a mattress, consider both its firmness rating and its overall construction to find a feel that is comfortable for you.

Firm mattresses for side sleepers

A very firm mattress won't necessarily suit every side sleeper. When sleeping on your side, you may prefer some cushioning around areas such as the shoulders and hips, particularly if you find a hard sleep surface uncomfortable.

If you prefer a firmer feel but sleep on your side, look for a mattress that combines a supportive core with enough cushioning to feel comfortable in your usual sleeping position.

Firm mattresses for heavier sleepers

People with a higher body weight may experience more sink into a mattress, so some may prefer the feel of a firmer mattress. However, this doesn't mean that everyone needs an extra-firm mattress.

Mattress construction is important too. Look for a mattress that provides the level of support and comfort you prefer, while checking the individual product specifications and recommended weight limits where provided.

Firm mattresses for couples

A firm mattress can work well for couples who both prefer a more supportive, less yielding feel. However, choosing a mattress as a couple can be more complicated if you have different firmness preferences or sleeping positions.

Consider a mattress that offers a balance of support, pressure relief and movement isolation. If you and your partner prefer different feels, a dual-sided or dual-comfort mattress may also be worth considering.

Ultimately, there's no single firmness that's right for everyone. The best firm mattress for you will depend on how you sleep, how you like your mattress to feel and the construction of the mattress itself.

How to Choose a Firm Mattress

Choosing a firm mattress isn't just about picking the highest firmness rating. Your sleeping position, preferred feel, mattress type and sleeping arrangements can all affect which mattress is right for you. Consider these five things before making your choice.

1. What sleeping position do you use?

Think about how you usually fall asleep and the position you spend most of the night in. Whether you're a back, side, front or combination sleeper, your sleeping position can influence how much cushioning and support you prefer.

  • Back sleepers may prefer a supportive feel with enough cushioning to remain comfortable.
  • Front sleepers may prefer a more responsive mattress that doesn't allow them to sink too deeply.
  • Side sleepers may want some additional cushioning around the shoulders and hips.
  • Combination sleepers may benefit from a responsive mattress that feels comfortable when changing position.

Your sleeping position isn't the only factor, though. Body shape, personal preference and the mattress construction can all influence how a firm mattress feels.

2. How firm do you actually want your mattress to feel?

Firm and extra firm aren't interchangeable. An extra-firm mattress generally provides a harder, less yielding feel than a firm mattress, with less sink when you lie down.

If you're used to a medium or medium-firm mattress, moving straight to an extra-firm option could feel very different. Consider how much cushioning and sink you enjoy before choosing your firmness rating.

If you're unsure, visiting a Bensons store and trying different firmness levels can help you compare how they feel for yourself.

3. What mattress type do you prefer?

Firmness is only part of the equation. The materials and construction inside a mattress can have a big impact on how it feels.

  • Pocket sprung mattresses use individually responsive springs and can provide a supportive, responsive feel.
  • Memory foam mattresses contour around the body and can provide a more cushioned, pressure-relieving feel, depending on their construction.
  • Hybrid mattresses combine springs with foam or other comfort layers, giving you a combination of responsive support and cushioning.
  • Orthopaedic mattresses are often associated with firmer, supportive constructions, although the feel can vary between individual mattresses.

Think about the feel and features you want from your mattress, rather than choosing based on firmness alone.

4. Do you sleep alone or with a partner?

If you're sharing your mattress, consider both your sleeping positions and your individual preferences. You might both prefer a firm mattress, but you could also have very different ideas about what "firm" actually feels like.

Mattress size can also make a difference. A larger mattress gives couples more room to move, while a mattress with good movement isolation can help reduce the impact of a partner moving during the night.

If you and your partner prefer different firmness levels, look out for mattresses with different comfort options or dual-sided designs.

5. What size mattress do you need?

Once you've considered firmness, sleeping position and mattress type, think about the size you need.

For one person, a single or small double mattress may provide enough space, while couples may prefer a double, king or super king mattress depending on the bedroom space available and how much room you like to have when sleeping.

It's also worth checking the dimensions of your existing bed frame before ordering a new mattress, as mattress sizes can vary slightly between countries and manufacturers.

Ready to find your firm mattress?

Once you know your preferred firmness, mattress type, size and sleeping requirements, you can narrow down your options and find a firm mattress that fits the way you sleep.

Firm Mattress FAQs

What is a firm mattress?

A firm mattress is a mattress designed to provide a more supportive, stable sleeping surface with less sink than a medium or soft mattress. It typically feels more resistant when you lie down and helps keep your body closer to the surface. Firmness varies between mattress brands, so a mattress described as “firm” can still feel different depending on its materials and construction.

Who should sleep on a firm mattress?

A firm mattress may suit people who prefer a supportive, stable feel with less body sink. It can be particularly suitable for some back and front sleepers, as well as people who find softer mattresses uncomfortable. However, the ideal firmness depends on factors such as sleeping position, body weight, body shape and personal preference, so a firm mattress is not automatically the right choice for everyone.

Is a firm mattress good for back sleepers?

A firm mattress can be a good option for back sleepers because it provides a stable surface with relatively little sink. However, the right firmness should still allow the mattress to cushion the natural curves of the body. If a mattress is too firm, it may feel uncomfortable around areas such as the shoulders and hips. Many back sleepers therefore prefer firm or medium-firm mattresses.

Are firm mattresses good for side sleepers?

Firm mattresses can work for side sleepers, but they may not provide enough cushioning for everyone. Side sleepers generally need sufficient pressure relief around the shoulders and hips, which can be harder to achieve on a very firm surface. A firm mattress with a comfort layer of foam or other cushioning material may provide a better balance of support and pressure relief.

Is firm the same as extra firm?

No. Firm and extra firm describe different levels of mattress firmness. A firm mattress provides a relatively supportive, low-sink feel, while an extra-firm mattress is harder and offers even less cushioning. Mattress firmness is not measured identically across every brand, so the difference between firm and extra firm can vary. Checking the manufacturer's firmness description and testing the mattress can help.

Is a firm mattress better than a medium mattress?

Not necessarily. Firmness is a personal preference, and the best choice depends on your sleeping position, body shape and preferred feel. A firm mattress provides less sink and more resistance than a medium mattress, while a medium mattress generally provides more cushioning. A firm mattress may suit people who prefer a stable surface, whereas a medium mattress may feel more forgiving.

What is the difference between a firm and medium-firm mattress?

A firm mattress generally feels more supportive and resistant to pressure, with less sink when you lie on it. A medium-firm mattress provides a balance between support and cushioning, allowing slightly more give beneath the body. The exact difference varies between manufacturers because mattress firmness is not standardised across the industry. Materials, construction and body weight can also affect how firm a mattress feels.

Are firm pocket sprung mattresses good?

Firm pocket sprung mattresses can provide a supportive, responsive feel while allowing individual springs to move independently. This construction can offer good support and reduce some movement transfer between sleeping partners. A firm pocket sprung mattress may suit people who prefer a more traditional, supportive feel. Its comfort will also depend on the number and type of springs and the materials used above them.

Are firm memory foam mattresses comfortable?

Firm memory foam mattresses can be comfortable if you prefer a supportive surface with limited sink. Memory foam responds to body heat and pressure, allowing it to contour around the body while the underlying mattress provides support. A firm memory foam mattress may feel different from a firm spring mattress because of its slower, more cushioning response. Comfort ultimately depends on personal preference and sleeping position.

What is the best firm mattress for a couple?

The best firm mattress for a couple depends on both sleepers' preferences, body weights and sleeping positions. A mattress with good motion isolation can help reduce disturbance when one person moves, while sufficient edge support can make the usable sleeping area feel larger. Couples with different firmness preferences may also want to consider a mattress with a balanced feel or separate firmness options.

What is the best firm mattress for a heavier person?

The best firm mattress for a heavier person should provide adequate support without excessive sagging or uncomfortable pressure points. A strong mattress construction, durable support system and suitable weight rating are important considerations. Firmness alone does not determine how supportive a mattress will be, because body weight can make the same mattress feel softer. Always check the manufacturer's recommended weight limits before buying.

How long does a firm mattress last?

A firm mattress can typically last for several years, but its lifespan depends on its construction, materials, usage and maintenance. High-quality mattresses made with durable materials may maintain their support for longer than lower-quality models. Regularly rotating the mattress when recommended by the manufacturer, using an appropriate bed base and following the care instructions can help maintain its condition and performance.

Why Buy Your Firm Mattress from Bensons?

Choosing a firm mattress is about more than finding the right firmness rating. At Bensons, you can explore different mattress types and comfort levels, get help choosing the right option for the way you sleep, and shop with added reassurance.

Try before you buy

Not sure how firm you really want your mattress to feel? Visit your local Bensons store to try different mattresses and compare comfort levels for yourself. Testing a few options can help you understand the difference between firm and extra firm, as well as how different mattress types feel when you lie on them.

Find your firmness with SleepPro

Still unsure which firmness is right for you? Our exclusive SleepPro technology analyses your sleeping position and creates a personalised sleep profile to help identify the comfort rating that may suit you. The process takes around five minutes and lets you experience different firmness levels before trying the mattresses recommended by our sleep experts.

Shop with our 40 Night Comfort Guarantee

Buying a mattress is a big decision, particularly when you're choosing a new firmness level. Bensons' 40 Night Comfort Guarantee gives eligible customers the opportunity to try their new mattress at home and, subject to the applicable terms and conditions, exchange it if they're not completely happy with the comfort. A small fee may apply, and exclusions apply to certain products including refurbished, clearance and ex-display items.

Get great value with Price Match

Found an identical mattress at a lower price elsewhere? Bensons' Price Match can help you shop with confidence. If you find a lower price on an identical product, Bensons says it will match it, with the current offer also providing up to an additional £25 off, subject to the applicable terms and conditions.

Find your firm mattress at Bensons

Whether you're looking for a firm pocket sprung, memory foam, hybrid or orthopaedic mattress, explore the range online or visit a Bensons store to compare different options and find the feel that's right for you.