# Doubleslee MATTRESS U Single Gel Memory Foam Mattress, Medium Firm

The Doubleslee MATTRESS U is a single gel memory foam mattress listed at 90 x 190 x 20 cm with a medium-firm feel. Its two-layer foam construction and removable, washable cover may suit buyers wanting a compact foam mattress, provided the stated care and unpacking conditions fit their needs.

- [Original product page](https://bargainpostbox.co.uk/product/doubleslee-mattress-u-single-gel-memory-foam)
- [View offer](https://bargainpostbox.co.uk/visit/doubleslee-mattress-u-single-gel-memory-foam)
- Market: UK
- Language: en-GB
- Currency: GBP
- Brand: Doubleslee
- Model: MATTRESS U
- Category: Home & Kitchen > Furniture > Mattresses
- Price: 84.99 GBP
- Previous price: 99.99 GBP
- Discount: 15%
- Price checked: 2026-11-13T05:59:02.292Z
- Rating: 4.7 / 5
- Reviews: 10

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## At a glance

- The listing describes a 4-centimetre gel memory foam layer over a 16-centimetre high-density foam base.
- The cover is described as removable and washable, with a bottom zip.
- Vacuum-compressed packaging is described as foldable for transport through narrow doorways.
- The manufacturer says to allow 48+ hours for decompression after unpacking.

## Pros

- Two foam layers combine a gel memory foam comfort layer with a high-density foam base.
- A removable, washable cover offers a practical cleaning option, according to the listing.
- The stated 90 x 190 cm single size and 20 cm thickness are clearly specified.

## Specifications

### Identity
- Brand: Doubleslee
- Model: MATTRESS U
- Mattress type: Standard Mattress
- Construction: Memory Foam
- Top style: Box Top
### Dimensions and installation
- Dimensions listed: 190 x 90 x 20 centimetres
- Size: Single \(90x190x20cm\)
- Weight listed: 9.7 Kilograms
- Thickness: 20 Centimetres
### Materials and feel
- Firmness: Medium Firm
- Number of layers: 2
- Fill material: Gel Memory Foam, High Density Foam
- Comfort layer: Gel Memory Foam
- Colour: Green
### Care and stated features
- Care instructions: Machine Wash
- Special features: Breathable, Durable, Edge Support, Fire-Retardant, Hypoallergenic

## Before you buy

- The listing calls the cover machine washable and also describes removing it through a bottom zip. Confirm the care method for the cover, rather than assuming the whole mattress is machine washable. Rotate head-to-toe weekly for the first six weeks, then every six weeks, as instructed. The manufacturer also says decompression may take 48+ hours and slight fold marks can fade during rebound.

## In the box

- Manual (Included)
- Unpacker (Included)

## A good fit for

- Buyers looking for a 90 x 190 cm single foam mattress with a medium-firm description.
- People who value a removable cover and are prepared to follow the stated washing and rotation guidance.
- Buyers moving a mattress through narrow doorways who may benefit from foldable vacuum-compressed packaging.

## Less suited to

- Shoppers needing a mattress other than the listed single size or a construction other than foam.
- Anyone who needs a confirmed washable whole-mattress product. The listing's machine-wash care field does not clarify whether it applies to the cover only.

## Customer feedback

The supplied evidence contains aggregate ratings but no written customer feedback. The ratings are mostly in the higher star categories, but the small sample and lack of comments do not establish which features buyers liked or any specific drawback.

## Frequently asked questions

### What size is the Doubleslee MATTRESS U?
It is listed as Single \(90x190x20cm\), with dimensions also stated as 190 x 90 x 20 centimetres.
### What is the mattress made from?
The listing specifies two layers, using Gel Memory Foam and High Density Foam. Its feature text describes a 4-centimetre gel memory foam layer over a 16-centimetre support base.
### Can the mattress cover be washed?
The listing describes a removable cover with a bottom zip and says it is washable. A separate care field says Machine Wash, but does not clarify whether that instruction applies to the cover alone.
### How long should it decompress after unpacking?
The manufacturer recommends 48+ hours of full decompression and notes slight fold marks may remain after compressed packaging before gradually disappearing.

## Alternative options

- [Oyajia Single Pocket Sprung Mattress 90x190 cm, Hybrid, Medium Firm, 23cm \| 7 Zone Single Hybrid Mattress 90 190, Medium Firm Pocket Sprung, OEKO-TEX 100, CertiPUR-US, Roll Packed](https://bargainpostbox.co.uk/visit/doubleslee-mattress-u-single-gel-memory-foam)
- [BEDZONLINE Hybrid Memory Foam Spring Mattress, Double, 20 cm Thick \| 190 x 135 x 20cm, Breathable & Hypoallergenic, Medium-Firm Support, Standard Tight Top Comfort, Durable & Long-Lasting](https://bargainpostbox.co.uk/visit/doubleslee-mattress-u-single-gel-memory-foam)
- [Uliyati Single Mattress Gel Memory Foam Mattress, Medium, 90x190x26CM \| Breathable Mattress for Cool Sleep & Pressure Relief, Motion Isolation](https://bargainpostbox.co.uk/visit/doubleslee-mattress-u-single-gel-memory-foam)
- [Sealy Posturepedic Elevate Blackwood Mattress](https://bargainpostbox.co.uk/visit/doubleslee-mattress-u-single-gel-memory-foam)
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- [King Size Orthopedic Memory Foam Mattress, 5FT, 12 Inch Hybrid, Cotswold \| Firm Support, Hybrid, Cooling Gel Foam, Pressure Relief for Back Pain, OekoTex Certified, Aloe Touch Fabric, Skin Soft](https://bargainpostbox.co.uk/visit/doubleslee-mattress-u-single-gel-memory-foam)
- [BEDZONLINE 3ft Single Adaptive Hybrid Gel Mattress, 25cm, Medium Firm \| 7 Zone Support, Orthopaedic, Cooling Gel Memory Foam, Pressure Relief, Motion Isolation, Medium Firm, UK Made, FR Compliant](https://bargainpostbox.co.uk/visit/doubleslee-mattress-u-single-gel-memory-foam)
- [My Furniture Luxury Double Mattress 4FT6 – 10" / 25cm, Medium-Firm Orthopaedic Euro-Top Hybrid, 5-Zone Pocket Spring & Gel Memory Foam, Tencel Cover – 100-Night Trial, 5-Year Warranty + Free Protector](https://bargainpostbox.co.uk/visit/doubleslee-mattress-u-single-gel-memory-foam)
- [Orthopaedic Single Mattress 3FT for Back Pain Relief, Luxe Pillow Top Hybrid 7-Zone Pocket Sprung Mattress with Cooling Gel Memory Foam & Breathable Bamboo Fibre Cover, Medium Firm, 27cm Deep](https://bargainpostbox.co.uk/visit/doubleslee-mattress-u-single-gel-memory-foam)
- [Cashmere Memory Pocket Sprung Mattress 1000 1500 2000 \(5FT King Size 2000\)](https://bargainpostbox.co.uk/visit/doubleslee-mattress-u-single-gel-memory-foam)
- [Geriafy Professional V6 3ft Memory Foam Mattress for Adjustable Beds, 20 cm \| 20 cm thick, with 6 cm memory foam, HR foam and a waterproof, washable and fire-retardant cover](https://bargainpostbox.co.uk/visit/doubleslee-mattress-u-single-gel-memory-foam)
- [King Size Orthopedic 9 Zone Mattress, 5FT, 12 Inch Memory Foam, Cotswold \| Extra Firm Support, 9 Zone Cooling Gel Foam, Pressure Relief for Back Pain, OekoTex Certified, Aloe Touch Fabric, Skin Soft](https://bargainpostbox.co.uk/visit/doubleslee-mattress-u-single-gel-memory-foam)

## Images

![Doubleslee MATTRESS U Single Gel Memory Foam Mattress, Medium Firm — 1](https://bargainpostbox.co.uk/i/YAUmjnf242iu-0Xxb_w6rLDxaErpRWL36ON2cq1oQKTXkBp5P_SlVonW0UtI3o9x5cvlGMHoOxpKblLzwjfqxxzVob-r03pM--8aRM9Tpbtrw-TlBjgwAapL.jpg)

![Doubleslee MATTRESS U Single Gel Memory Foam Mattress, Medium Firm — 2](https://bargainpostbox.co.uk/i/f0LBFZxEk-FTjYArVjesmXZYQJtZCRlOevV3Fvf5_lWV0GBGwSMFX8yFB1Ow_BzATEHkJgY9liYX4cxfgbFHtigR_gWSWKBh-OfU_7LUQ1j8irooqEqzK5IK.jpg)

![Doubleslee MATTRESS U Single Gel Memory Foam Mattress, Medium Firm — 3](https://bargainpostbox.co.uk/i/7iyzegpyYHCZyH6gdwupGgAiWCo5koNZZ1bcyeFzSUEN9yaZhCJZ1EdzDiswzsDeevQijc_Fsv6JWR_BRSWe6MCJyJ9B0v7ihHQVdDGLdififS1E3q2e859x.jpg)

![Doubleslee MATTRESS U Single Gel Memory Foam Mattress, Medium Firm — 4](https://bargainpostbox.co.uk/i/IY2PVJYCyRJmoLKJrOaHsXXdWAyaC9EGtB7k6HhTWz6yRMlYUkx69mORb1Tk0QTKZ32qE1Knvs2iUPRgSe3kAJpqbnrPtsRnRaNqDYNAAj4RE1UGQbW4bgra.jpg)

![Doubleslee MATTRESS U Single Gel Memory Foam Mattress, Medium Firm — 5](https://bargainpostbox.co.uk/i/QxyS7JhPVObf9luQz-piII-Wv6TbPwIgLI4f83uFvNMkf_gTDaHpyPEfNGJ6jKRK6__7XGvRWrOkGcEf7uLMpaiGpf6HY8e-PDcpr_ZO3N6RvifK2FWbwEnA.jpg)

![Doubleslee MATTRESS U Single Gel Memory Foam Mattress, Medium Firm — 6](https://bargainpostbox.co.uk/i/rT6JLEsmnA3Sh_KRTRJ3Ufycu4iPQUjqHV2aeXPkkFpuL51lGiwjNPzaUILLcJNgFkpBX5-z0v3DzEsyzyOhYZKE8sjtuFSJiusN_mCD_vtx1mZ6t2fmH-0E.jpg)

![Doubleslee MATTRESS U Single Gel Memory Foam Mattress, Medium Firm — 7](https://bargainpostbox.co.uk/i/aTQmZ1JTQ6g3o-3ewfWBigdzFNpZi9xeidYVQnPHQO1kXgCImuETXG9dGBz42fpuGUl3CGzgK7ZG_7abJRD_48FUi8XJJbA-dN5Z7k8jXjPtMry8crYoZFnI.jpg)