# Doubleslee Memory Foam Mattress Series, 5ft King, Medium, 150 × 200 × 20 cm

Doubleslee Memory Foam Mattress Series is a medium 5ft king all-foam mattress with a gel memory foam comfort layer and high-density foam support layer. Its stated two-layer construction and removable cover suit buyers seeking a simple foam mattress, though the listing's differing dimension formats and uncertain cover inclusion merit attention.

- [Original product page](https://bargainpostbox.co.uk/product/doubleslee-memory-foam-mattress-series-5ft-king)
- [View offer](https://bargainpostbox.co.uk/visit/doubleslee-memory-foam-mattress-series-5ft-king)
- Market: UK
- Language: en-GB
- Currency: GBP
- Brand: Doubleslee
- Model: MEMORY FOAM MATTRESS SERIES
- Category: Home & Kitchen > Furniture > Mattresses
- Price: 141.07 GBP
- Previous price: 165.99 GBP
- Discount: 15%
- Price checked: 2026-11-12T18:43:12.356Z
- Rating: 4.4 / 5
- Reviews: 568

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 described construction combines a 4 cm gel memory foam layer with a 16 cm high-density foam support layer.
- The listing says the cover is removable and machine washable.
- It arrives vacuum-sealed and compressed. Allow 48–72 hours after opening for expansion, according to the listing.

## Pros

- Two foam layers provide a distinct comfort layer and support layer, rather than a single undifferentiated foam filling.
- Medium firmness, king sizing and the listed common base options make its intended setup clear.
- A removable, machine-washable cover is claimed, which may help with routine care if the selected package includes it.

## Specifications

### Identity
- Brand: Doubleslee
- Model: MEMORY FOAM MATTRESS SERIES
- Size: 5FT King \(150x200x20cm\)
- Mattress type: Standard Mattress
- Firmness: Medium
### Dimensions and installation
- Dimensions listed: 200 x 150 x 20 centimetres
- Weight listed: 16.9 Kilograms
- Thickness: 20 Centimetres
- Compatible bases: Box Spring, Bunkie Board, Solid Foundation
- Foldable: No
### Construction and materials
- Construction type: Gel Foam
- Layers: 2.0
- Fill material: High Density Foam, Memory Foam
- Comfort layer material: Gel Memory Foam
- Cover material: Polyester Blend
- Top style: Euro Top
- Colour: Brown
### Care and features
- Care instructions: Machine Wash（Cover）
- Special features: Breathable, Durable, Fire-Retardant, Low Motion Transfer, Removable Cover
- Age range: Adult
- Country of origin: China

## Before you buy

- The listing gives the size as 5FT King \(150x200x20cm\) and also lists dimensions as 200 x 150 x 20 centimetres, while another dimensions field uses a different metres format. Confirm the mattress size and cover inclusion in the selected listing. The feature text says a washable cover, but the explicit contents list names only a manual. The claimed cooling, back-pain relief and durability benefits are not independently established here. Allow 48–72 hours for expansion after unpacking.

## In the box

- Manual (Included)
- Removable mattress cover (Check selected pack): The feature text claims a washable cover, but the explicit contents list names only a manual. Check the selected listing.

## A good fit for

- Adults looking for a medium-feel, 5ft king foam mattress with a gel memory foam comfort layer.
- Buyers who can wait for a compressed mattress to expand and want a removable, washable cover, after confirming it is included.

## Less suited to

- Shoppers who need a pocket-sprung or hybrid mattress, since the described construction is foam.
- Anyone needing confirmed cover inclusion or completely consistent size information before purchase.

## Customer feedback

Customer feedback highlights comfort, a pleasing firmness level, support and improved sleep, with some customers reporting fewer body aches. For buyers considering this medium, two-layer foam mattress, those impressions are relevant to comfort expectations but do not establish a medical benefit. Opinions about sinking are mixed, so buyers sensitive to body impressions should weigh that uncertainty.
- Positive themes: Customers report comfort and a firmness level they find suitable.
- Positive themes: Some customers describe support and improved sleep, including fewer body aches.
- Mixed feedback: Opinions about sinking are mixed.

## Frequently asked questions

### What size is this mattress?
The listing identifies it as 5FT King \(150x200x20cm\) and also states dimensions of 200 x 150 x 20 centimetres. Another dimensions field uses a different metres format, so confirm the selected listing's measurements.
### What is inside the mattress?
The description specifies a 4 cm gel memory foam layer over a 16 cm high-density foam support layer, making a stated 20 cm total.
### Does it arrive ready to sleep on?
The listing says it is vacuum-sealed and compressed. It recommends allowing 48–72 hours after opening for it to expand fully.
### Is the cover included and washable?
The features describe a removable, machine-washable cover, but the explicit contents list names only a manual. Confirm cover inclusion with the selected listing.

## Alternative options

- [Doubleslee Memory Foam Mattress King Size Bed, 8 Inch Medium, 150x200x20cm \| 9 Zone Orthopedic 5ft King Mattress for Pressure Relief & Cool Sleep, Motion Isolation, Washable Cover](https://bargainpostbox.co.uk/visit/doubleslee-memory-foam-mattress-series-5ft-king)
- [Laccard King Mattress, 5ft Memory Foam Mattress, Cooling Kingsize Mattresses, Medium Firm, with Removable Cover, 150X200X15cm](https://bargainpostbox.co.uk/visit/doubleslee-memory-foam-mattress-series-5ft-king)
- [Vesgantti 5FT King Size Mattress 150x200cm Hybrid Medium Firm Mattress \| 10 Inch Orthopedic Mattress, Memory Foam & Individually Pocket Springs, Pressure Relief, Motion Isolation, 150x200x25cm](https://bargainpostbox.co.uk/visit/doubleslee-memory-foam-mattress-series-5ft-king)
- [Deegari 10 Inch King Size Mattress in a Box, Hybrid Cooling Gel Memory Foam & Pocketed Coils, Medium Firm, Pressure Relief, Motion Isolation](https://bargainpostbox.co.uk/visit/doubleslee-memory-foam-mattress-series-5ft-king)
- [NOFFA Soft King Size Mattress，King Memory Foam Mattresses，Roll-Up Orthopedic Mattress in a Box，CertiPUR-US and OEKO-TEX Certified，Triple Support \(150x200x20cm\) \(5FT\)](https://bargainpostbox.co.uk/visit/doubleslee-memory-foam-mattress-series-5ft-king)
- [Vesgantti 5FT King Size Mattress 150x200cm Pocket Sprung Mattress, Medium \| 10.6 Inch Upgraded Pillow Top, Individually Pocket Springs, Breathable Foam, 7-Zone Orthopaedic,Back Support,Motion Isolation](https://bargainpostbox.co.uk/visit/doubleslee-memory-foam-mattress-series-5ft-king)
- [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-memory-foam-mattress-series-5ft-king)
- [slily 12 Inch King Size Mattress for Back Pain, 5ft Hybrid Mattress with Supportive & Comfortable, 7-Zone Pocket Sprung Memory Foam Cooling Bed Mattresses, 30cm Deep Medium Firm 150 X 200cm](https://bargainpostbox.co.uk/visit/doubleslee-memory-foam-mattress-series-5ft-king)
- [Slily 12 Inch King Size Mattresse for Back Pain Relief Cool & Supportive \| 5ft Hybrid Pocket Sprung Memory Foam Mattress, 7-Zone Super King Size orthopedic Mattresses, Medium Firm 150 X 200x30cm](https://bargainpostbox.co.uk/visit/doubleslee-memory-foam-mattress-series-5ft-king)
- [Hiimgo Double Memory Foam Mattress 135x190x22cm,Medium Firm \| 22CM Thickness, Breathable, Medium Firm, Perfect for Body Support, Durable](https://bargainpostbox.co.uk/visit/doubleslee-memory-foam-mattress-series-5ft-king)
- [Doubleslee 5ft King Size Mattress Gel Memory Foam Mattress Medium Firm \| Soft Skin-Friendly Removable Washable Cover, Cool Sleep, Relieves Back & Waist Pain, CertiPUR-US Certified, 150x190x20 cm](https://bargainpostbox.co.uk/visit/doubleslee-memory-foam-mattress-series-5ft-king)
- [Tegeniss King size Mattress 25cm Memory Foam & Pocketing Spring \| In a Box \| Medium Firm, Breathable Cover,Motion Isolation,Edge Support,White \(150 \* 200 \* 25cm\)](https://bargainpostbox.co.uk/visit/doubleslee-memory-foam-mattress-series-5ft-king)

## Add-ons

- [Caroline Shatuik Waterproof Mattress Protector King \|40cm Extra Deep Fitted King Size Waterproof Bed Protector Topper \| Non Noisy & Breathable Mattress Cover King Size Bed\(152 X 200 +40CM\)](https://bargainpostbox.co.uk/visit/doubleslee-memory-foam-mattress-series-5ft-king)
- [Utopia Bedding King Size Fitted Sheet, White, Deep Pocket 35cm \(14"\) \| Oeko-Tex Certified, Non Iron Wrinkle-Free, Shrinkage and Fade Resistant, Soft Brushed Microfiber Fabric, Bottom Sheet](https://bargainpostbox.co.uk/visit/doubleslee-memory-foam-mattress-series-5ft-king)

## Images

![Doubleslee Memory Foam Mattress Series, 5ft King, Medium, 150 × 200 × 20 cm — 1](https://bargainpostbox.co.uk/i/NDpQ8usuznQb7l2IwcPminpwCATZrQV4YUmEtdTxhXJwWMXV_hgtw5o7XVpl_S0aGhcSdr40lE1-NeU9Me-WwoK3uDwcExIS4RYs7qOe4-uUPL5Q3PLP7Fy2.jpg)

![Doubleslee Memory Foam Mattress Series, 5ft King, Medium, 150 × 200 × 20 cm — 2](https://bargainpostbox.co.uk/i/oBn0L_JB4ncDl8jEHhlaoFjJ6qOjooVF_s_3CxtgHQM-a_6_Yh-W_olcSFDE0TApWoS0ugBg1kJ1rv_qkH3KAm-rpXWlQt_Yq6PZ-EiEB36wjp1-vbuyxT-B.jpg)

![Doubleslee Memory Foam Mattress Series, 5ft King, Medium, 150 × 200 × 20 cm — 3](https://bargainpostbox.co.uk/i/FE1pqXhg1DRouqMruEIpvyIcQ0FLsuMOAX8SkEe8wBrqFGQjXmK6Ylhn_vhDxG6BlXzAPCP-R99UeVcG-mBobOAz-_xjeDDpe-hoNpyjB7jxM4a8iC_hwIIy.jpg)

![Doubleslee Memory Foam Mattress Series, 5ft King, Medium, 150 × 200 × 20 cm — 4](https://bargainpostbox.co.uk/i/1E0_E-Ph8ZhCOAQuocJZkjbtIS7XSlghMmAPQHjH112iAT4xloBsL6tKSazoq-oQD4gH0fJH3hqrI_6jmq4vjbCrnJwsASNmA88M3XswWceH5p3y2fXYoKGm.jpg)

![Doubleslee Memory Foam Mattress Series, 5ft King, Medium, 150 × 200 × 20 cm — 5](https://bargainpostbox.co.uk/i/1g0fM9GU9eFlCN5-TFmi-IctgXCiiDeRpzMQevFD87dJQPj8tc6tXA7EenB7UZkC-xsGsz2bAyxpKjAiTp6jPsXB46n236sEYrg3-wIhsZtDbGkV6g5rrD7P.jpg)

![Doubleslee Memory Foam Mattress Series, 5ft King, Medium, 150 × 200 × 20 cm — 6](https://bargainpostbox.co.uk/i/TCWVn0tHhoDIUMRo9OfHiEIaWZYrknSY6RW7CrAn2iGLGU6k1zfpDynoIR1tID6Yr73C1l-4Iz4rqbmuRJL5CKR4w_hHCrLhaHmwqfBI0dYcMb64ztXGdNEw.jpg)

![Doubleslee Memory Foam Mattress Series, 5ft King, Medium, 150 × 200 × 20 cm — 7](https://bargainpostbox.co.uk/i/3DS3YxbtiXkuATGkuwIPhwpkaLZwxHTL95G0hTU2yelf2oEszx6c91vPS2tpCEfwd8pdwjMe0YCkG3HDHoN5TQOD3Eedp5Z77yTF94f6PI4uNyrNO1od6uB8.jpg)