Top 10 Best Memory Foam Mattresses UK
Updated April 2025

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 2025.

Disclosure: We receive referral fees from the brands listed below.
  • 1
    Best Overall
    Spring SALE | Up to 47% OFF
    CHECK PRICE
    • 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
    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
  • 2
    Best Foam
    FREE GIFTS Included- Worth Up To £646
    CHECK PRICE
    • 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
    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
    CHECK PRICE
  • 3
    Best Hybrid
    Exclusive Offers: Save Up To 50%
    CHECK PRICE
    • 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
    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
    CHECK PRICE
  • 4
    Spring SALE | Up to 47% OFF
    CHECK PRICE
    • Materials: Gel infused Foam with cooling layer
    • Firmness: Medium
    • Shipping: Free - no contact delivery
    • Trial Period: 365 days
    • Warranty: Lifetime warranty
    • Certifications: Meets CertiPUR-US standards
    Pressure relief and support for all sleeping positions
    • Free shipping
    • 365 night trial period
    • Cooling cover
    Full Review
    9.5 Excellent
    CHECK PRICE
  • 5
    Winter Sale! Get Up to 65% Off
    CHECK PRICE
    • Materials: Hybrid with integrated topper
    • Firmness: Medium 6.5/10
    • Shipping: Free Shipping & Returns
    • Trial Period: 200 days
    • Warranty: 15 years warranty
    2-1 hybrid mattress with integrated topper
    • Advanced pocket spring system
    • 200-Night home trial
    • 15 years warranty
    Full Review
    9.3 Great
    CHECK PRICE

Our Top Choice

  • 1
    Best Overall
    Spring SALE | Up to 47% OFF
    CHECK PRICE
    • 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
    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
Visit site
Best Foam
Visit site
Best Hybrid
Visit site
Visit site Visit site
Model Nectar Mattress Simba Mattress Dreamcloud Mattress Nectar Premier Mattress Hypnia Supreme Hybrid Mattress
Material Foam Hybrid Hybrid Memory Foam Hybrid
Cooling 8/10 9/10 9.5/10 8/10 7/10
Firmness 6.5 / 10 6.5/10 6.5/10 6.5/10 6.5/10
Motion Isolation 8/10 8.5/10 7/10 7/10 7/10
Trial Period 365-Night Trial 200-Nights 365-Night Trial 365-Night Trial 200-Night Trial
Free Shipping and Returns Yes Yes Yes No Yes
Warranty Lifetime 10 Years Lifetime Lifetime 15 Years
Price Level Dollar Dollar Dollar Dollar Dollar Dollar Dollar Dollar Dollar Dollar Dollar Dollar
Special Sales
Spring SALE | Up to 47% OFF
FREE GIFTS Included- Worth Up To £646
Exclusive Offers: Save Up To 50%
Spring SALE | Up to 47% OFF
Winter Sale! Get Up to 65% Off
Check price 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 April 2025
Best Overall
Nectar Mattress
Memory Foam | 6.5 / 10
Nectar Mattress
CHECK PRICE
Spring SALE | Up to 47% OFF
Best Foam
Simba Mattress
Hybrid | 6.5/10
Simba Mattress
CHECK PRICE
FREE GIFTS Included- Worth Up To £646
Best Hybrid
Dreamcloud Mattress
Hybrid | 6.5/10
Dreamcloud Mattress
CHECK PRICE
Exclusive Offers: Save Up To 50%