wowttrelax MATTRESS S 4ft Small Double Foam Mattress, 15cm

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Product guide

wowttrelax MATTRESS S 4ft Small Double Foam Mattress, 15cm

The wowttrelax MATTRESS S is a 4ft small double foam mattress with two firmness options, soft on one side and medium-soft on the other. At 15cm thick, it is a relatively slim, roll-packed mattress that needs 48–72 hours to expand before use.

At a glance

Flip the mattress to choose between a shaped-cut soft side and a flat-cut medium-soft side.
The listing describes matching fabric on both sides, so switching firmness does not require removing the cover.
The zip-off cover is described as removable and machine washable.
Supplied compressed and rolled. The listing advises allowing 48–72 hours to expand before sleeping on it.

Price

£84.99Save 15%

Reference price: ~~£99.99~~

Price checked: 14 Nov 2026

View offer Ahead of Black FridayExplore the selection

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Pros and cons

Pros

Two stated comfort choices in one mattress, without needing to remove its cover to flip it.
The 15cm profile and listed 7.9kg weight may suit buyers who prefer a slimmer, lighter mattress.
A removable cover that the listing says can be machine washed.

Cons

At 15cm thick, it offers a slimmer profile than many mattresses, which may not suit buyers looking for a deeper mattress.

Technical specifications

16 specifications

Identity
Brand	wowttrelax
Model	MATTRESS S

Dimensions and installation
Size	4ft Small Double (120x190x15cm)
Dimensions listed	190 x 120 x 15 centimetres
Thickness	15 Centimetres
Weight listed	7.9 Kilograms

Materials and construction
Construction	Foam
Fill material	High Density Foam
Mattress comfort layer material	Polyfoam
Number of layers	1
Cover material	Polyester
Top style	Box Top
Colour	White

Comfort and care
Firmness description	Soft and medium soft
Special features listed	Hypoallergenic, Low Motion Transfer, Orthopaedic, Pressure Relief, Removable Cover
Care instructions	Machine Wash

What to know before buying

Listing details to confirm

The listing is inconsistent about package contents: its title describes a mattress in a box and the details list a manual and unpacker, while a removable cover is described in the feature text. Confirm whether the cover and unpacking tool are included in the selected listing. The 48–72 hour expansion period is also specified.

What’s in the box

ManualIncluded
UnpackerIncluded
Removable coverCheck selected pack

Check which accessories are included in your selected pack before buying.

Who is it for?

A good fit for

Small-double bed owners seeking a 120 x 190cm foam mattress with soft and medium-soft options.
Buyers who want a slimmer mattress and a removable, washable cover.

Less suited to

Shoppers seeking a thick mattress or a firmer feel than the listed soft and medium-soft choices.
Anyone who needs a confirmed package inventory before ordering without checking the selected listing.

wowttrelax MATTRESS S 4ft Small Double Foam Mattress, 15cm · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.4 / 5 · 865 ratings

5 stars74%74%
4 stars12%12%
3 stars4%4%
2 stars2%2%
1 star8%8%

Customer feedback praises perceived quality and value, while experiences with firmness and comfort are mixed. Some say the mattress feels less soft than expected, and comments include both improved and worse sleep. Some customers also report feeling springs at the side. That concern is worth weighing against the listing's one-layer high-density foam construction, which does not explain the reported spring sensation. The positive overall rating is accompanied by a meaningful minority of low ratings, so individual comfort may vary.

Positive themes

Customers describe the mattress as good quality and good value.

Negative themes

Some customers report feeling springs at the side of the mattress.

Mixed feedback

Firmness feedback varies, including reports that it is not as soft as expected.
Comfort reports differ, with some describing better sleep and others worse sleep.

Frequently asked questions

What are the two firmness options?

The listing describes a shaped-cut soft side and a flat-cut medium-soft side. Flip the mattress to switch between them.

How long should it expand before use?

The listing advises waiting 48–72 hours after unwrapping for the compressed mattress to fully expand.

Can the cover be washed?

The feature text describes a removable zip cover for washing, and the care details say machine wash. Package contents are inconsistent, so confirm the selected listing includes the cover.

What comes with the mattress?

The listed included components are a manual and unpacker. The title and feature text also refer to a mattress in a box and removable cover, but the package information does not clearly corroborate all of these details.