---
product_id: 49134988
title: "Airsteam Mattress Topper Double Bed - 4cm Breathable, Cool & Supportive Mattress Cover for Hot Sleepers | UK-Made, Soft Touch Cover, Non-Allergenic, Elasticated Straps (135 x 190cm)"
brand: "slumberdown"
price: "¥35534"
currency: JPY
in_stock: true
reviews_count: 8
url: https://www.desertcart.jp/products/49134988-airsteam-mattress-topper-double-bed-4cm-breathable-cool-and-supportive
store_origin: JP
region: Japan
---

# Machine washable cover Cooling Airstream fibres 4cm deep comfort layer Airsteam Mattress Topper Double Bed - 4cm Breathable, Cool & Supportive Mattress Cover for Hot Sleepers | UK-Made, Soft Touch Cover, Non-Allergenic, Elasticated Straps (135 x 190cm)

**Brand:** slumberdown
**Price:** ¥35534
**Availability:** ✅ In Stock

## Summary

> ❄️ Sleep Cool, Feel Fresh, Live Refreshed!

## Quick Answers

- **What is this?** Airsteam Mattress Topper Double Bed - 4cm Breathable, Cool & Supportive Mattress Cover for Hot Sleepers | UK-Made, Soft Touch Cover, Non-Allergenic, Elasticated Straps (135 x 190cm) by slumberdown
- **How much does it cost?** ¥35534 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/49134988-airsteam-mattress-topper-double-bed-4cm-breathable-cool-and-supportive)

## Best For

- slumberdown enthusiasts

## Why This Product

- Trusted slumberdown brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Secure Fit, No Slip:** Deep elasticated corner straps hold the topper firmly in place, ensuring uninterrupted comfort.
- • **Effortless Clean & Care:** Removable, breathable cover is machine washable and tumble dryer friendly for quick freshness.
- • **Stay Cool All Night Long:** Advanced moisture-wicking technology keeps you dry and sweat-free, beating memory foam’s heat trap.
- • **Hypoallergenic Sleep Sanctuary:** Crafted to prevent allergies, so you wake up refreshed, not sniffly or itchy.
- • **Revive Your Mattress Instantly:** 4cm thick Airstream fibre topper breathes new life into tired beds without the cost of replacement.

## Overview

The Slumberdown Airstream Mattress Topper (135x190cm) is a 4cm thick, breathable, and hypoallergenic mattress enhancer designed to improve comfort and support for double beds, especially in caravans and campervans. Featuring cooling Airstream fibres and a machine washable cover with elasticated straps, it offers a practical, hygienic, and refreshing sleep upgrade without the need for a full mattress replacement.

## Description

Slumberdown Airsteam Mattress Topper Double Bed - 4cm Breathable, Cool & Supportive Mattress Cover for Hot Sleepers | UK-Made, Soft Touch Cover, Non-Allergenic, Elasticated Straps (135 x 190cm)OEKO-TEX STANDARD 100

## Features

- OLD MATTRESS REVIVER: This 4cm deep mattress topper is filled with Airstream fibres providing an enhanced comfort and support to your old and tired mattress and help prevent any aches and pains. The mattress pad also acts as a reviver giving your existing mattress a new lease of life while you save up for the big investment and without you compromising a better night's sleep
- BREATHABLE: the topper is designed with a breathable luxury soft knit cover which is wonderfully soft and cool to touch for an all around comfort. Airstream technology wicks moisture away and is cooler than memory foam so it keeps you feeling cool, dry and fresh throughout the night while keeping the night sweats away
- MACHINE WASHABLE COVER: this bed topper features a soft and breathable luxurious cover which can be easily unzipped and put into the washing machine at a lower temperature and in a tumble dryer for a quick refresh, so it can be back on your bed as quickly as you need it
- HYPOALLERGENIC: wake up refreshed as our mattress toppers do not contain any materials which are likely to cause allergies and help you prevent symptoms like sneezing, runny nose, itchy skin or watery eyes
- ELASTICATED STRAPS: the mattress cover features deep elasticated corner straps for an easy fit and holds the topper firmly on your mattress, so after a tiring day you can enjoy a comfortable sleep

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Slumberdown |
| Model Number | 6991AMZ77 |
| Colour | White |
| Material | 100% Breathable Microfibre |
| Special Features | Temperature Control, Cooling, Quilted, Hypoallergenic, Washable |
| Item Weight | 3.74 kg |

## Product Details

- **Brand:** Slumberdown
- **Colour:** White
- **Size:** Double Bed
- **Fabric Type:** Memory Foam
- **Special feature:** Temperature Control, Cooling, Quilted, Hypoallergenic, Washable

## Images

![Airsteam Mattress Topper Double Bed - 4cm Breathable, Cool & Supportive Mattress Cover for Hot Sleepers | UK-Made, Soft Touch Cover, Non-Allergenic, Elasticated Straps (135 x 190cm) - Image 1](https://m.media-amazon.com/images/I/81hxbMk7AHL.jpg)

## Questions & Answers

**Q: Does this topper help make a firm mattress softer**
A: It does make a firm mattress softer that was the main reason I bought it as I had a hip replacement and found it difficult to to get comfy on hard mattress but once I got my airstream topper no problem it was lovely and comfy.

**Q: What is the topper made of as it states it’s not memory foam ? I’m slighlty confused as some people have stated it feels like a duvet**
A: It is sort of like wadding- it’s quite soft, but not as soft as a duvet. If you looking for memory foam though, it isn’t anything like that

**Q: Is this washable**
A: The removable cover is washable; the inner filling isn't.

**Q: What the thickness in inches on this?**
A: The information is in the product description. It’s 4.5cm thick.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Comfortable
*by G***T on 2 May 2023*

Fits the bed well, not too thick so sheets still fit but adds enough comfort. Puffed up well when left to rest and creases came out over a few days. Good value and cheap way to add comfort to poor mattress.

### ⭐⭐⭐⭐⭐ Excellent
*by W***L on 14 August 2017*

It arrived the next day and I put it on the bed, following the instructions I left it to settle for a few hours before making up the bed. I decided to lay down to test it, just for a minute, woke up 3 hours later! Needless to say I found this to be a good product and make the bed so much more comfortable. Very good price and you can take the cover off to wash it too. I will be buying another one for the spare room.

### ⭐⭐⭐⭐ Recommended for uncomfortable caravan beds
*by I***H on 28 October 2020*

Once you take this out, you'll never get it back in the carrier. However we are using it to improve the appalling bed in our touring caravan, and it does! It smooths out the joints well, isn't sweatie, but is rather firm and you will need a complete under seat to store it. Excellent to be able to remove and wash the cover.

## Frequently Bought Together

- Slumberdown Airstream Mattress Topper Double Bed - 4cm Thick Ideal for Caravans, Campervans, Sofa Beds Mattress Reviver - Cooling, Breathable, Hypoallergenic, Machine Washable, Size (135cm x 190cm)
- Utopia Bedding Fitted Sheet Double, White - Deep Pocket 14 inch (35 cm) - Easy Care - Soft Brushed Microfibre Fabric - Shrinkage and Fade Resistant - Bottom Sheet
- Slumberdown Airstream Memory Cool Mattress Topper Kingsize Bed - 4cm Thick Ideal for Caravans, Campervans, Sofa Beds Mattress Reviver - Cooling, Hypoallergenic, Machine Washable, Size (150cm x 200cm)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-08-23*