Updated July 2024

Top 10 Best Memory Foam Mattresses UK

You will spend a third of your life on a mattress. We are here to help you make a better choice when buying an online mattress in the UK. We provide detailed reviews of the best memory foam mattresses in 2024.

Advertising Disclosure: We receive referral fees from the brands listed below.
President's Day
  • 1
    Best Overall
    Special SALE | 21% OFF All Mattresses
    • Materials: Memory Foam with cooling layer
    • Firmness: Medium firm
    • Shipping: Free Named Day Shipping*
    • Trial Period: 365 days
    • Warranty: Lifetime warranty
    • Certifications: Meets CertiPUR standards
    • Financing: As low as 0% APR financing with DivideBuy or Klarna
    CHECK PRICE Full Review
    Excellent pressure relief, comfort and motion isolation
    • Award winning mattress
    • 365-Night Home Trial
    • Forever warranty
    • Free Shipping
    Full Review
    9.9 Outstanding
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  • 2
    Best Foam
    Summer Slumber SALE | 25% OFF
    • Materials: Aerocoil microsprings and cooling Simbatex foam
    • Firmness: medium-firm
    • Shipping: Free delivery & returns
    • Trial Period: 200 nights
    • Warranty: 10 Years
    • Certifications: CertiPUR
    • Financing: 0% interest, up to 4 years & pay nothing for a year
    CHECK PRICE Full Review
    The world’s most five star reviewed mattress
    • 200,000+ five-star reviews;
    • Technology provides support and temperature control;
    • Won over 50 sleep industry awards;
    Full Review
    9.7 Outstanding
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  • 3
    Best Hybrid
    SALE | 57% OFF + Free Bedding Set
    • Materials: Hybrid memory foam and innerspring coils
    • Firmness: Medium luxury firm
    • Shipping: Free delivery and returns
    • Trial Period: 365 days
    • Warranty: Lifetime Warranty
    • Financing: As low as 0% APR financing with DivideBuy or Klarna
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    Top-quality materials for superior comfort
    • Luxury Hybrid Mattress
    • 365-Night Sleep trial with Lifetime Warranty
    • Financing available - As low as 0% APR
    Full Review
    9.5 Excellent
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  • 4
    Winter Sale! Get Up to 65% Off
    • Materials: Hybrid with integrated topper
    • Firmness: Medium 6.5/10
    • Shipping: Free Shipping & Returns
    • Trial Period: 200 days
    • Warranty: 15 years warranty
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    2-1 hybrid mattress with integrated topper
    • Advanced pocket spring system
    • 200-Night home trial
    • 15 years warranty
    Full Review
    9.3 Great
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Our Top Choice

  • 1
    Best Overall
    Special SALE | 21% OFF All Mattresses
    • Materials: Memory Foam with cooling layer
    • Firmness: Medium firm
    • Shipping: Free Named Day Shipping*
    • Trial Period: 365 days
    • Warranty: Lifetime warranty
    • Certifications: Meets CertiPUR standards
    • Financing: As low as 0% APR financing with DivideBuy or Klarna
    CHECK PRICE Full Review
    Excellent pressure relief, comfort and motion isolation
    • Award winning mattress
    • 365-Night Home Trial
    • Forever warranty
    • Free Shipping
    Full Review
    9.9 Outstanding
    CHECK PRICE

Side-By-Side Comparison

Best Memory Foam Mattresses
Best Overall
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Best Foam
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Best Hybrid
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Model Nectar Mattress Simba Mattress Dreamcloud Mattress Hypnia Supreme Hybrid Mattress
Material Foam Hybrid Hybrid Hybrid
Cooling 8/10 9/10 9.5/10 7/10
Firmness 6.5 / 10 6.5/10 6.5/10 6.5/10
Motion Isolation 8/10 8.5/10 7/10 7/10
Trial Period 365-Night Trial 200-Nights 365-Night Trial 200-Night Trial
Free Shipping and Returns Yes Yes Yes Yes
Warranty Lifetime 10 Years Lifetime 15 Years
Price Level Dollar Dollar Dollar Dollar Dollar Dollar Dollar Dollar Dollar Dollar Dollar
Special Sales
Special SALE | 21% OFF All Mattresses
Summer Slumber SALE | 25% OFF
SALE | 57% OFF + Free Bedding Set
Winter Sale! Get Up to 65% Off
Check price Check price Check price Check price

How to Choose the Best Memory Foam Mattress?

Memory foam was initially invented by NASA to cushion pilots during flights. It was later adopted by the healthcare and sleep industries thanks to its visco-elastic attributes and ability to relieve pressure. Today, memory foam is the most popular mattress material in the UK.

This memory foam mattress buying guide highlights essential considerations when comparing different memory foam mattress brands in the UK. 

How to Choose the Best Memory Foam Mattress?

Tips When Buying Memory Foam

Traditional Memory Foam vs Gel Foam

Memory foam mattresses come in 2 major types: traditional and gel-infused memory foam. There is not much difference between these mattresses on the surface. Both types are considered the most comfortable mattresses, thanks to the way they conform to the sleeper’s body to hug its curves. The two also score relatively equal marks when it comes to absorbing motion energy, leading to reduced disturbances. 

The significant difference between regular memory foam and gel memory foam is in the construction. Essentially, gel memory foam is a traditional visco-elastic foam that has been infused with cooling gel. This material helps to reduce heat build-up- the major issue that affects traditional memory foam. Some brands use Phase-Changing Materials (PCM) to offer similar results. If you fear that memory foam might cause you night sweats, a gel-infused model might be a better proposition. Just be ready to spend a little more. 

Mattress Density

Memory foam mattresses come in 3 density options: high, medium, and low. Density simply talks about how much material is used per cubic foot of the mattress. Density in a memory foam bed affects its price tag, durability, and how long it takes to break in. 

Density also affects the comfort level of the mattress. Generally, low-density memory foam mattresses (3 pounds and under) are best for lightweight people who sleep mainly on their sides or back. Medium-density mattresses (4-5 pounds) make a good bed for average-weight individuals across all sleeping positions. Lastly, high-density mattresses (5 pounds and above) are the best for heavy side, stomach, and back sleepers. 

Thickness

Thickness refers to tallness. Memory foam mattresses range between 6 and 14 inches in thickness. In general, a thicker mattress will feel softer than a thinner one leading to more pressure relief. However, note that thicker mattresses tend to be less supportive, although this also depends on its density plus your weight. Ideally, if you’re eyeing a thicker mattress, you also need to ensure that it’s dense enough to support your weight and sleeping style.

Our Top Picks
for July 2024
Best Overall
Nectar Mattress
Memory Foam | 6.5 / 10
Nectar Mattress
CHECK PRICE
Special SALE | 21% OFF All Mattresses
Best Foam
Simba Mattress
Hybrid | 6.5/10
Simba Mattress
CHECK PRICE
Summer Slumber SALE | 25% OFF
Best Hybrid
Dreamcloud Mattress
Hybrid | 6.5/10
Dreamcloud Mattress
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SALE | 57% OFF + Free Bedding Set

Recommended Mattress

Best Overall: Nectar Mattress

Definitely, it’s hard to go wrong with the Nectar if you’re looking for a relatively affordable but great quality memory foam mattress. Its medium-firmness makes it a suitable candidate for first-time memory foam buyers who aren’t sure which firmness level will work for them. In addition, its ability to support different sleeping positions makes it a great pick for couples who can’t agree on the best mattress. Lastly, this mattress will make an incredible purchase for a guest room.

Visit Nectar Site
Special Sale! - Nectar Mattress
Nectar Mattress
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Trial365-Night Trial
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WarrantyLifetime
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Shipping/Returns& Returns
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Mattress TypeMemory Foam
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Firmness6.5 / 10
Special SALE | 21% OFF All Mattresses
  • Hot sleepers
  • Couples
  • People on a budget
  • All Sleepers
Overview

The Nectar mattress is an 11-inch foam bed that can be used on any type of bed frame, including adjustable and metal frames. It has a medium firmness rating of 6.5 out of 10 on the firmness scale and offers sleepers all-around comfort across all body shapes. This bed-in-a-box style mattress ships right to your doorstep, providing value for money with its 365-day trial period, free shipping, free returns and Forever Warranty. We expect this product to last 5 to 7 years with regular use.

Pros & Cons
  • Accommodates different sleeping positions
  • Sleeps cooler than traditional memory foam
  • Easy to move on
  • All-foam construction compromises bounce

Best Foam: Simba Mattress

The Simba mattress is a nicely-built mattress that we expect to meet most people’s sleep needs. This mattress offers an impressive balance between comfort and support and will accommodate different body types and sleeping positions. Best of all, the manufacturer has addressed the heat retention issue that troubled the previous version. We also appreciate the 200-night trial period and the 10-year warranty that Simba offers. Although most people end up keeping the mattress, those who’ve returned it affirm that the process is straightforward. Have we pointed out that all returns are free?

Visit Simba Site
Special Sale! - Simba Mattress
Simba Mattress
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Trial200-Nights
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Warranty10 Years
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Shipping/Returns& Returns
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Mattress TypeHybrid
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Firmness6.5/10
Summer Slumber SALE | 25% OFF
  • Hot sleepers
  • 200-night home trial
  • People with back pain
  • back sleepers
Overview

The Simba is a 5-layer 25cm (9.75 inches) thick hybrid mattress with conical pocket springs, proprietary memory foam and poly foam. The mattress is categorised as medium-firm, managing a 6.5 on the 1-10 firmness scale. It comes in all UK bed sizes from small single to Emperor and EU sizes ranging from EU small single to EU queen. This mattress is part of the bed-in-a-box technology and it's shipped in a large box measuring 107cm x 50cm x 50cm. This can be used on any supportive mattress platforms including box spring and slatted bed frame.

 

Pros & Cons
  • Offers excellent back pain relief
  • It’s cooling
  • Has above-average edge support
  • Accommodates various sleeping positions
  • Doesn’t make you feel stuck
  • Not as bouncy as standard hybrid mattresses
  • Mattress has no handles