We value your privacy

Our website uses cookies to enhance your experience, serve personalized ads and analyze our traffic. To learn more, see our Cookie Policy

100 Night Sleep Trial on ALL mattresses!
Recent Searches
    Suggestions
      Top Products

      Firm Mattresses

      Specially designed to evenly distribute your weight as you sleep, firm mattresses are perfectly suited to help alleviate any back, neck, shoulder, and hip pain you might be experiencing. Although the softness of a medium mattress can certainly be comforting, sometimes our bodies need that little bit of extra support throughout the night for an uninterrupted rest. And if this sounds familiar, then a firm mattress might be just what you're looking for. Take a look at our filterable range below or head to the bottom for more details about firm mattresses.

      71 results

      Read what our verified customers are saying

      • Trustpilot 5 stars

        On time

        On time, polite, quick drop off and rang 30 mins before arrival which gave me enough time to prepare, mattress was good quality and matched the description online.

        Michael Gilbank
        26th April 2026 Verified
      • Trustpilot 5 stars

        Kept me updated through each step of delivery, exceptional service

        Kept me updated through each step of the delivery process with, from purchase of my new mattress to receiving a call half an hour before the arrival. I only ordered my mattress at around 4pm and received the next day before 12pm. Very impressed with the delivery and service.

        Sally Crew
        26th April 2026 Verified
      • Trustpilot 5 stars

        The process was easy and efficient

        The process was easy and efficient. The two chaps that delivered were friendly and explained what they would do. Faultless and wouldn't hesitate to use again.

        Emma Evans
        26th April 2026 Verified
      • Trustpilot 5 stars

        Good choice of delivery dates

        Good choice of delivery dates. Speedy delivery and excellent communication regarding timing of delivery. Would highly recommend.

        Carol
        26th April 2026 Verified
      • Trustpilot 5 stars

        A good quality mattress

        The mattress was delivered promptly. It looks good, and I particularly like the firmness of the mattress due to having back issues.

        Mohamed Shafique Nazerali
        26th April 2026 Verified
      • Trustpilot 5 stars

        I bought this for my son and he was

        I bought this for my son and he was really pleased at how quickly it was delivered without any issues. The same as when I ordered.My mattress

        Mrs Patricia Carroll
        26th April 2026 Verified
      • Trustpilot 5 stars

        Mattresses and bed

        Fantastic service from start to finish from picking the bed to the mattresses pleased with the quality of the bed and mattress would definitely recommend this company for beds and mattresses

        Customer
        26th April 2026 Verified
      • Trustpilot 5 stars

        Very pleased with the matteress

        Very pleased with the matteress. Delivery was easy to arrange and communicate around this was first class.

        Courtney
        26th April 2026 Verified
      • Trustpilot 5 stars

        Brilliant store that deals solely with

        Brilliant store that deals solely with beds and mattresses etc. Both members of staff we dealt with were very knowledgeable. Ordered on tuesday and delivered wednesday late morning. Took old bed and delivered everything to the bedroom. One of the sliders was damaged but replacement arranged for the next day. Prices were good too. Bought hypnos and it's great. Would highly recommend.

        Michael, Kent
        25th April 2026 Verified
      • Trustpilot 5 stars

        Excellent service

        Excellent service from ordering to delivery and we love the mattress and having the 100 night guarantee is great leave of mind.

        Rachelle
        25th April 2026 Verified

      Help & Buying Guides

      What are the different types of firm mattresses?

      Firm mattresses come in a range of different types to suit all sleepers:

      • Memory foam

      • Pocket sprung

      • Miracoil™

      • Traditional sprung 

      • Natural fillings

      • Geltex

      Whether you’re a front, side or back sleeper, prefer a more responsive feel or need to stop your partner’s night-time wriggling from disturbing your sleep, you can choose from a huge selection of firmer options here at MattressNextDay.

      Memory foam

      Designed for NASA’s space program, memory foam is incredibly supportive and comfortable. It moulds to the shape of your body, minimising pressure points and cradling your body for all-night comfort. Firm memory foam mattresses are usually single-sided, so they’re easy to look after, too.

      Pocket sprung

      A matrix of high-tensile steel springs sits in individual fabric pockets to create one of the best firm mattresses available. Each spring can act independently as well as respond to its neighbours, so movement transference is minimised. Incredibly comfortable and long-lasting.

      Miracoil™

      Exclusive to Silentnight, this unique system is designed to provide outstanding support with no roll-together or movement transference. Particularly suitable for front sleepers, these mattresses are top-quality options with plenty of extra comfort features.

      Traditional sprung 

      Using a matrix of interconnected springs, traditional sprung firm mattresses are a great budget option that provides good levels of comfort and support. They’re ideal if you want to replace a guest bed mattress and can be combined with mattress toppers for extra comfort.

      Natural fillings

      Using fillings such as pure wool, bamboo, and cotton, these mattresses are often naturally hypoallergenic. These are often chosen by shoppers looking for breathable materials and a fresher-feeling sleep environment.

      Cooling gel and Geltex

      One issue with memory foam mattresses is that they can often feel a little on the warm side. Cooling mattresses such as Geltex mattresses include a gel layer that keeps the sleeping area cooler and fresher, making them perfect for sleepers who suffer from night sweats or hot flushes.

      Is a firm mattress good for your back?

      Thinking about investing in a new mattress for back pain? Firm mattresses are often chosen by people looking for extra support, though comfort needs vary from person to person. If your mattress is too soft and unsupportive, you can sink into it too deeply which can cause your back to curve.

      If your surface is too hard, though, you can put too much pressure on different parts of your body, leading to aches, pains and stiffness. A decent firm mattress can help support a more neutral sleeping position, helping you to keep a healthy alignment and avoid back pain, stiffness and other bodily aches. They can also be a good option for those seeking a firmer, more supportive feel.

      Why should I buy a firm mattress?

      Firm mattresses are ideal if you like sleeping on your back or your stomach, this kind of mattress can support your weight without causing pain to pressure points, such as your heels, toes, buttocks, ribcage, elbows, shoulders, and head. It's also the ideal mattress type for a heavy person, as it prevents your hips and shoulders from dipping too far into the mattress surface, helping maintain a more neutral sleeping position.

      Comfort is a very subjective area and what might be the right resistance for one person may be completely wrong for another so it’s important to know what kind of tension suits you before you buy. Our guide to mattress firmness can help you better understand the different types available.

      Do firm mattresses last longer?

      Firm mattresses are just like any other mattress in that they last for approximately eight years before you need to start thinking about replacing your old mattress. We advise that single-sided mattresses (often those made from memory foam) are rotated from head to foot every six months or so to avoid dips, lumps, and bumps from forming - read our guide to turning and rotating your mattress for more help.

      For double-sided mattresses, flipping and turning every few months will achieve the same effect, prolonging the life of your mattress and preventing those uncomfortable lumps from forming. The firmness rating of a mattress will not have any direct influence on how long it lasts.

      What are the benefits of a firm mattress?

      When using a firm mattress, you may find it easier to settle into a comfortable sleeping position. If you have been bending during the day or sitting for long periods, after a hard day's work the stability that a firm mattress supplies may help improve comfort after a long day.

      Many hotels have firm mattresses throughout their rooms. Some hotels add an extra element of comfort and luxury by adding a firm memory foam mattress topper on top of the mattress. This also helps prolong the life of a mattress as well as providing an additional layer of comfort and support.

      Is next-day delivery available?

      With our 24-hour free delivery, your perfect firm mattresses can be at your doorstep as soon as possible. Browse our wide online selection today to explore options that are all handmade in the UK and offer the above benefits. Find out more by contacting our team who will answer any questions you may have.

      If you need help choosing the right mattress firmness for you, check out our Mattress Buying Guide for tips and tricks on how to choose the best type of mattress for you.

      Disclaimer: While our mattresses are designed to support healthy sleep posture, comfort is subjective. If you have a chronic medical condition or any health concerns, please consult a healthcare professional.