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

Up to 70% Off in our Summer Sale! Ends in

Memory Foam Mattresses

A crowning achievement of sleep innovation, memory foam mattresses offer the ultimate cushion and comfort, suitable for a wide range of sleepers. From a single memory foam mattress to a memory foam king mattress, our comprehensive range has been expertly curated to improve sleep quality for all age groups.

58 results


Trustpilot Star rating

Based on 23,378 reviews

Trustpilot Star rating Verified

We were kept updated all the way through from purchase right up until delivery which was very helpful.

Linda Rudd 11th Jul
Trustpilot Star rating Verified

From ordering to delivery they were very good. Ordering offices very easy, delivery very quick and delivery company very efficient and careful.

Anita B 9th Jul
Trustpilot Star rating Verified

So far so good with the mattress, the quality is excellent and is as described. First class speedy delivery service received and would not hesitate to recommend.

Vicki 9th Jul

Help & Buying Guides

What is a memory foam mattress?

Memory foam was originally developed by NASA. This technology is used to provide high levels of comfort and support. Consisting of viscoelastic foam, the breathable material reacts to your body temperature while allowing air to pass through, conforming to your shape without overheating. To find out more, check out how to choose the best memory foam mattress.

A memory foam mattress moulds to your body’s shape on contact, evenly distributing your weight into a comfy sleeping position. The hypoallergenic mattress technology also keeps health problems such as asthma at bay to help provide an uninterrupted night’s sleep.

Which memory foam mattress is best for me?

The best memory foam mattress will depend on several factors. Firstly, consider your sleeping position. If you sleep on your back you’ll need a medium firm mattress to support your spine and relieve pressure points. However, if it’s too firm it may not give you the correct level of comfort.

If you’re a front sleeper, you’ll need a firm mattress that prevents your back from arching. If your back is not supported properly, it could put pressure on your internal organs and lead to long-term health issues. Side sleepers need a medium firmness that moulds to the shape of your body and also prevents those pressure points from affecting your neck, shoulders, lower back and hips. 

Are memory foam mattresses cheap?

You can pay as little or as much as you want for a memory foam mattress. Options range from budget-friendly to exclusive. You get all the benefits of memory foam including outstanding levels of comfort and support. And remember, when you order your new mattress, you’ll also get free delivery to UK mainland addresses. We can also take your old mattress away for recycling.

  • Budget – Budget memory foam mattresses start at around £150 and go up to around £200.

  • Mid-range – If you’re looking for something a little more luxurious, a mid-range memory foam mattress will cost you between £200 and £500.

Top-of-the-range – The sky’s the limit with top-of-the-range memory foam mattresses, and you can expect to pay anything from £500 up to around £1600-£2000.

What’s the difference between memory foam and pocket-sprung mattresses?

The main difference between pocket sprung and memory foam is the construction. Pocket-sprung mattresses are made with many internal springs while memory foam is made from layers of foam with a dense matrix. This construction means that memory foam mattresses:

  • Spread the weight evenly, conforming to the shape of the body

  • Encourage you to adopt a healthy sleeping position

  • Improve posture

  • Adapt to your movements, cradling your body and avoiding pressure points

  • Banish aches and pains, especially joint pain

Are memory foam mattresses firm or soft?

Memory foam mattresses come in a range of comfort levels to suit your specific requirements and sleeping preferences. While it is generally a more plush design in comparison with traditional spring mattresses, memory foam can be purchased in firmness ratings ranging from soft to extra firm. Our guide on preparing and caring for your memory foam mattress will give you advice on how to change the firmness of your mattress as your needs change.

Are memory foam mattresses good for your back?

Memory foam helps to promote a healthy spinal alignment by shaping around the individual contours of your body. The material has been chosen by many to help with interrupted sleep caused by nighttime aches. They are suitable mattresses for back pain and joint trouble due to the orthopaedic support targeted to the body’s pressure points.

Still undecided on what mattress is right for you and your home? Check out our mattress buying guide for further advice. Alternatively, if you are a sufferer of arthritis, then check out our best mattress for arthritis guide. 

Can you get memory foam mattress toppers?

Yes. Memory foam mattress toppers are a great idea if you want a firm mattress but also want the moulded comfort and support that memory foam provides. They are great for side sleepers who want a softer feel when they snuggle down at the end of the day. They’re also a cost-effective way to prolong the lifespan of your mattress. 

Size Imperial Metric
Cot Mattress 3'9" x 1'9" 120cm x 60cm
Cot Bed Mattress 4'6" x 2'3" 140cm x 70cm
Adjustable Small Single 2'6" x 6'6" 75cm x 200cm
Adjustable Single 3' x 6'6" 90cm x 200cm
Adjustable Small Double 4' x 6'6" 120cm x 200cm
Adjustable Double 4'6" x 6'6" 135cm x 200cm
Small Single 2'6" x 6'3" 75cm x 190cm
Single 3' x 6'3" 90cm x 190cm
Small Double 4' x 6'3" 120cm x 190cm
Double 4'6" x 6'3" 135cm x 190cm
King Size 5' x 6'6" 150cm x 200cm
Super King 6' x 6'6" 180cm x 200cm
European Small Single 2'8" x 6'6" 80cm x 200cm
European Single 3' x 6'6" 90cm x 200cm
European Double 4'7" x 6'6" 140cm x 200cm
European King Size 5'3" x 6'6" 160cm x 200cm

All mattress sizes given are approximate and stated sizes refer to the sleeping surface only. Mattresses sizes may vary slightly from their stated dimensions due to manufacturing tolerances, please allow +/- 2 inches (5cm).

Support Best for
 Icon for Memory Foam Memory Foam Body moulding and pressure relieving
 Icon for Natural Fibres Natural Fibres Unrivalled comfort, naturally temperature-regulating
 Icon for Latex Latex Breathable, supportive and eco friendly
 Icon for Cool Gel Memory Foam Cool Gel Memory Foam Active cooling properties, ideal for hot sleepers
 Icon for Soft White Fibres Soft White Fibres Hypoallergenic polyester, soft and durable

Support Best for
 Icon for Pocket Springs Pocket Springs Individual springs for tailored support
 Icon for Foam Foam Conforms to your body's shape, silent (no springs)
 Icon for Open Coil Springs Open Coil Springs Traditional, interlinked springs
 Icon for Pocket Springs Latex Bouncy yet supportive, great for hot sleepers

Firmness Best for
Good for side sleepers, a softer level of support
Good all-rounder for front, side or back sleepers
Medium - Firm
Good for people who change sleeping position
Good for people who sleep on their front or back
Extra Firm
The firmest level of support, also known as orthopaedic

Shop now, pay later with Klarna.
klarna icon

You can spread the cost of purchases over £400 without any fees or interest thanks to our partnership with Klarna, a payment service provider.

Available payment options

Pay in 30 days
  • Spend £400 or more.
  • Proceed to checkout and select Klarna’s pay in 30 days interest-free option.
  • Get an instant decision on your application.
  • Enjoy your new purchase and in 30 days, Klarna will automatically take out your payment.
Spread over 3 payments
  • Spend £400 or more.
  • Proceed to checkout and select Klarna’s pay in 3 interest-free instalments option.
  • Get an instant decision on your application.
  • Pay the 1st instalment when your order is confirmed and instalments 2 and 3 will be scheduled 30 and 60 days later, respectively.
0% finance over 6 months
  • Spend £400 or more.
  • Proceed to checkout with your purchase and select Klarna’s interest-free 6 month finance option.
  • Get an instant decision on your application.
  • Pay the 1st instalment when you order and pay the rest on a month-by-month basis over 6 months. You can also pay off the full amount anytime.
0% finance over 12 months
  • Spend £400 or more.
  • Proceed to checkout with your purchase and select Klarna’s interest-free 12 month finance option.
  • Get an instant decision on your application.
  • Pay the 1st instalment when you order and pay the rest on a month-by-month basis over 12 months. You can also pay off the full amount anytime.

18+, T&Cs apply, Credit subject to status. Bedsonline.biz Ltd is authorised and regulated by the Financial Conduct Authority (FCA FRN 710091) and acts as a credit intermediary and not a lender, offering credit products provided exclusively by Klarna Bank AB (publ). Finance is only available to permanent UK residents aged 18+, subject to status, terms and conditions apply. Klarna’s [Pay in 3 instalments] [and] [Pay in 30 days] are unregulated credit agreements.Borrowing more than you can afford or paying late may negatively impact your financial status and ability to obtain credit. 18+, UK residents only. Subject to status. Ts&Cs and late fees apply.

An error has occured. Please try again.