Best 3 Inch Memory Foam Mattress Topper Deals Online in the UK (10 Deals Found)

Last Updated - 15/09/2026 Sort By:

Best Choice
GreenWhim

New
GreenWhim Luxury 3 Inch Memory Foam Mattress Topper – Back Pain Relief, Breathable Bamboo Cover, Removable & Washable, U
1.Dual-Layer Support for Superior Comfort: With a soft foam top layer and a firm support base, this topper ensures a bal

£25.99
19% Off
Doubleslee

New
Doubleslee 3 Inch Memory Foam Mattress Topper Small Double Bed, Gel-Infused Cooling Small Double for Back Pain Relief, C
💖【Premium Soft Knitted Cover】Doubleslee mattress topper small double is adopt a skin-friendly hypoallergenic knitted fa

£56.97 £69.99
EHEYCIGA

New
EHEYCIGA Memory Foam Mattress Topper Double Bed, Cooling Gel Mattress Pad with Extra Deep Pocket, Breathable Mattress Co
SOFT PROTECTION: Our multi-layered mattress topper adapts ultra-soft fiber filling and extra deep pocket with elastic gr

£45.81
UsparkMC

New
USPARK Memory Foam Mattress Topper Double Bed - 7cm Thick Mattress Topper for Back Pain Relief with Cooling Gel-infused
Dual-Layer Pain Relief: Our memory foam mattress topper combines innovative 2-in-1 system. 5cm pressure-relieving memory

£89.99
Best Value
Doubleslee

New
Doubleslee 3 Inch Memory Foam Mattress Topper Double Bed, Gel-Infused Cooling Orthopedic Mattress Topper for Back Pain R
💖【Premium Soft Knitted Cover】Doubleslee mattress toppers double size bed is adopt a skin-friendly hypoallergenic knitte

£57.78 £79.99
28% Off
Vesgantti

New
Vesgantti 3 Inch Memory Foam Mattress Topper Small Double, Gel & Bamboo Charcoal Infused Bed Topper for Cooling Sleep &
【Dual-Layer & Ventilated Design】This 7.5CM mattress topper features a 2-Layer design that includes 3CM gel infused memor

£71.99 £99.99
Southern Foam

New
Southern Foam Memory Foam Mattress Topper, 3 Inch, UK King Size

£80.00
21% Off
Fijinhom

New
Fijinhom 3 Inch Memory Foam Mattress Topper Single Bed, Thickness Mattress Toppers Single,Cooling Bed Topper with Breath
【Cooling Ice Silk Cover】Fijinhom single mattress topper features a skin-friendly Nanoparticle Ice Silk cover, which brin

£47.49 £59.99
iSTYLE MODE BETTER HOME CHOICE

New
Orthopaedic Memory Foam Mattress Topper - Standard UK Sizes 1" 2" 3" 4", Various Thicknesses/Depths Available, Soft & Co
✅ PERFECT PURCHASE: Get the perfect night's sleep with a memory foam mattress topper that conforms to your body's shape

£29.95
GreenWhim

New
GreenWhim Luxury 3 Inch Memory Foam Mattress Topper for Double Bed, 7.5cm Deep Support for Back Pain Relief, Cooling Bam
DUAL-LAYER COMFORT, DESIGNED FOR DEEP REST: Thoughtfully constructed with a dual-layer foam system that balances plush c

£42.99 £44.99

10 3 Inch Memory Foam Mattress Topper deals are available from: Amazon stores, starting from £25.99.
The biggest discount we found is 28% on Vesgantti 3 Inch Memory Foam Mattress Topper Small Double, Gel & Bamboo Charcoal Infused Bed Topper for Cooling Sleep & Pressure Relieving, with Washable Cover-120 x 190 x 7.5CM at Amazon.
The lowest price we found is £25.99 while the highest is £89.99.
Prices for the best 3 Inch Memory Foam Mattress Topper deals average at £54.90.
Last updated on September 15, 2026.
We scanned these quality online stores and more to deliver you with the best offers online available for 3 Inch Memory Foam Mattress Topper.