Rank #8 in Best Mattress Topper 2026: What 10cm Really Means
GC GAVENO CAVAILIA 10cm Deep Mattress Topper Double Bed, Hotel Quality
Price and rating as shown on Amazon when we collected them. Both change.
At £16.99 this is the cheapest topper in the ranking and the only one whose own specification table disproves its marketing. The bullets sell a gel-infused memory foam topper with cooling technology; the same page lists Material Type: Microfiber and Fabric Type: Microfiber, and the filling weighs 3.25kg — exactly what the fibre rivals here weigh and nowhere near the 6.91kg and 8.16kg of the genuine foam toppers.
None of that makes it a bad buy. It is the only topper here under £20, it is 10cm deep, 74 per cent of its 428 ratings are five stars, and one buyer measured it: yes, it really is 10cm. Just know that you are buying a synthetic fibre topper and not memory foam, whatever the badge says.
How those 428 ratings break down
An average hides its own shape. This is the spread behind the 4.5 stars.
Specification
Exactly as published on the Amazon listing, field for field.
| Stated thickness | 10 cm |
|---|---|
| Item weight as listed | 3.25 kg |
| Price per kg of filling | £5.23 |
| Material as listed | Microfiber |
| Fixing | Corner pockets, 6 to 22 inches |
| Care | Synthetic wash at 40 degrees |
What buyers actually say
Quoted from customer reviews on Amazon
Verified purchase“Qreat quality, and yes I measured, it really is 10cm.”
Verified purchase“This mattress topper is so soft and comfy you don’t want to get up in the morning.”
What it is up against
The rivals it was ranked against in Best Mattress Topper 2026: What 10cm Really Means.
Rank #1
BONNVIA 7cm Memory Foam Mattress Topper Double with Bamboo Fibre Cover
£79.99
Rank #2
Bacalar 7cm Memory Foam Mattress Topper Double, 7-Zone Support
£82.99
Rank #3
BEDLORE Mattress Topper Double Bed, Viscose Derived from Bamboo
£48.99
Rank #4
MightySoft 10cm Extra Deep Quilted Microfiber Mattress Topper Double
£26.99
Questions people ask
Is it memory foam?
No. The bullets say gel-infused memory foam, but the specification table lists Material Type and Fabric Type as microfiber, and the weight, 3.25kg, matches the fibre toppers rather than the foam ones.
How thick is it?
10cm as listed, and one verified buyer measured it and confirmed the depth.
Why is it so cheap?
It is a synthetic fibre topper in a quilted cover, made for value rather than support, and it is also sold for sofa beds and camping.
Will it fit a deep mattress?
The listing says the corner pockets suit mattresses from 6 to 22 inches thick.
Can I wash it?
Yes, the care instructions call for a synthetic wash at 40 degrees and suggest shaking and airing it regularly.
How many ratings does it have?
428 at the time of collection, averaging 4.5 stars, with 74 per cent five-star and 3 per cent one-star.
Comments
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