BONNVIA BMT5 10cm Memory Foam Mattress Topper

Memory: The BONNVIA BMT5 mattress topper is listed as a 10cm-thick foam topper with a bamboo-fibre blend cover. Its dual-foam construction is described as reversible for two comfort levels, while the listing gives its size as 5ft King rather than Super King.

At a glance

The listing describes memory foam paired with support foam, with two comfort levels accessed by flipping the topper.
A removable cover is listed as machine washable and made from 38% bamboo fibre and 62% polyester.
Non-slip dots are claimed on the underside.
The feature copy claims OEKO-TEX and CertiPUR-US certifications.

Price

£115.99Save 32%

Reference price: ~~£169.99~~

Price checked: 14 Nov 2026

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Pros and cons

Pros

The two-foam reversible design offers a choice of firmness without replacing the topper.
The cover can be removed and machine washed, according to the care instructions.
The stated 10cm depth adds a substantial foam layer over the mattress.

Cons

The cover is not water resistant, so it is not listed as protection against spills.

Technical specifications

13 specifications

Identity and size
Brand	BONNVIA
Model	BMT5
Listed size	5ft King - 150x200cm
Display dimensions	2 x 1.5 x 0.1 metres
Colour	Gray

Materials and protection
Core and cover	Foam Core: Bonnvia Memory Foam + Bonnvia Support Foam; Cover: 38% Bamboo Fibre + 62% Polyester
Water resistance listed	Not Water Resistant

Care and construction
Care instructions	Machine Wash
Cover closure	Zipper
Special features listed	Adjustable, Cooling, Hypoallergenic, Washable

Other details
Number of items	1
Country of origin	China
Warranty description	100 Nights Trial & 10 Years Warranty from the Date of Purchase

What to know before buying

Listing details to confirm

Size and thickness details conflict: the title calls this Super King and 10cm thick, while the size field states 5ft King - 150x200cm and the displayed dimensions are 2 x 1.5 x 0.1 metres. Confirm the intended mattress size and actual dimensions before ordering. The listing also describes non-slip dots but customer feedback is mixed on whether it stays in place, and firmness impressions vary. Certification claims are stated in promotional copy, not verified here.

What’s in the box

Included

Mattress topper
Removable cover

Who is it for?

A good fit for

Shoppers seeking a deep foam layer with two reversible comfort options.
Buyers who want a removable, machine-washable cover and can confirm the 150x200cm size suits their bed.

Less suited to

Anyone who needs a water-resistant topper.
Buyers requiring a confirmed Super King fit without first resolving the listing's size discrepancy.

BONNVIA BMT5 10cm Memory Foam Mattress Topper · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.2 / 5 · 107 ratings

5 stars68%68%
4 stars9%9%
3 stars9%9%
2 stars6%6%
1 star8%8%

Customer feedback highlights comfort, perceived value and reports of improved sleep, with the listed 10cm thickness generally meeting expectations. Firmness opinions differ, from medium-to-firm to not soft enough, and feedback about staying in place is mixed. For buyers considering the reversible foam design, those differences matter: the firmer feel and grip may not suit everyone, and the listing's fit discrepancy should be resolved before purchase.

Positive themes

Customers report comfort and improved sleep, with some describing the topper as good value.
The reported thickness generally meets customer expectations.