1 / 7BONNVIA BMT1 Super King Mattress Topper, 7cm
The BONNVIA BMT1 is a 7cm mattress topper for a 6ft Super King bed, with a bamboo-fibre cover and a claimed reversible, two-level comfort design. Its listed care instructions allow machine washing the cover but say not to wash the foam.
At a glance
- The listing describes a 7cm topper with memory foam and high-resilience foam, and says flipping it provides two comfort levels.
- Adjustable straps are claimed to help hold the topper in position.
- The cover is described as washable. The stated care instructions specify machine washing the cover only, not the foam.
- The listing claims OEKO-TEX and CertiPUR-US certifications.
Often bought together
Pros and cons
Pros
- Two foam types and a reversible design offer a choice of comfort feel without replacing the topper.
- A removable, machine-washable cover makes routine cleaning more practical, provided the foam is kept unwashed.
- Adjustable straps are a useful securing feature for a large Super King topper.
Cons
- The foam itself must not be washed, so cleaning is limited to the cover and surface care.
Technical specifications
13 specifications| Brand | BONNVIA |
|---|---|
| Model | BMT1 |
| Bed size | 6ft Super King - 180x200cm |
| Display dimensions | 2 x 1.8 x 0.07 metres |
| Colour | Gray |
| Weight listed | 11.24 Kilograms |
| Material listed | Polyure + Bamboo Fibre |
|---|---|
| Thread count | 400 |
| Water resistance listed | Not Water Resistant |
| Firmness description | Medium to Soft |
| Closure type | Zipper |
| Care instructions | Mattress Cover: Machine Washable, Mattress foam: do not wash |
| Special features listed | Adjustable, Cooling, Hypoallergenic, Washable |
|---|
What to know before buying
Listing details to confirm
The listing’s title specifies a 7cm thickness, while its displayed dimensions give 0.07 metres. The listing also describes the feel as both Medium to Soft and two-sided with different comfort levels, without specifying each side’s firmness. Certification and cooling or hypoallergenic performance are listing claims, not independently confirmed. Check the selected listing for the exact cover and trial terms before purchase.
Who is it for?
A good fit for
- Super King owners seeking a 7cm foam layer with a washable cover and straps.
- Buyers who want a reversible topper described as offering two comfort levels.
Less suited to
- Anyone needing a fully washable topper, since the listing says not to wash the foam.
- Shoppers who need water resistance, as the listed water-resistance value says it is not water resistant.

Customer reviews on Amazon
- 5 stars
83% 83% - 4 stars
9% 9% - 3 stars
4% 4% - 2 stars
1% 1% - 1 star
3% 3%
Customer feedback reports improved sleep and support, with comments favouring the balance of softness and firmness and noting that the topper stays in place. Buyers who want a more comfortable feel without changing the mattress may find those reports relevant, while the reported odour experiences vary from very little smell to a strong unpleasant odour. The overall rating distribution is mostly five-star, but ratings alone do not establish why customers were satisfied or dissatisfied.
Positive themes
- Customers report better sleep and support, and appreciate the balance of softness and firmness.
- Feedback also mentions that the topper stays in place and puffs up to the advertised thickness.
Negative themes
- Some customers report a strong unpleasant odour.
Mixed feedback
- Reports about odour differ, with some customers noting very little smell and others describing a strong one.
Frequently asked questions
What bed size is this topper listed for?
It is listed as 6ft Super King, 180x200cm.
Can the topper be machine washed?
The care instructions say the cover is machine washable, but the mattress foam must not be washed.
Does it offer two firmness options?
The feature description says it can be flipped for two comfort levels. The listed firmness is Medium to Soft, but the firmness of each side is not specified.
Does the listing state that it is water resistant?
No. Its water-resistance detail is listed as Not Water Resistant.

Alternative options

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DOPEDIO 8CM Memory Foam Mattress Topper Super King Bed,Dual-Layer Firmnes | Breathable Washable Bamboo Cover, Pressure Relief, Anti-Slip Dots & Adjustable Straps, OEKO-TEX & CertiPUR-US (180x200x8cm)
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USPARK Super King Memory Foam Mattress Topper, 7cm Thick (180x200cm) | Egg-crate Gel-infused Memory Foam, Dual-layer, Superking size bed, Breathable Machine Washable Bamboo Cover, Pressure Relief
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Mattress Topper Super King Bed, Orthopaedic Pressure Relief Memory Foam | 7cm Thick, Dual Firmness, Neck Back Hip Support, OEKO-TEX Hypoallergenic Washable Cover, Adjustable Straps, 100 Nights Trial
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