---
product_id: 662109481
title: "Slumberdown 10cm Extra Deep Super King Mattress Topper - Ultra-Soft Box Quilted Breathable Thick Topper | 2-Year Guarantee, Elasticated Straps, Non-Allergenic & Washable"
brand: "slumberdown"
price: "€ 570.38"
currency: EUR
in_stock: true
reviews_count: 8
category: "Slumberdown"
url: https://www.desertcart.nl/products/662109481-slumberdown-10cm-extra-deep-super-king-mattress-topper-ultra-soft
store_origin: NL
region: Netherlands
---

# breathable, non-allergenic hollowfibre secure elasticated corner straps 10cm extra deep cushioning Slumberdown 10cm Extra Deep Super King Mattress Topper - Ultra-Soft Box Quilted Breathable Thick Topper | 2-Year Guarantee, Elasticated Straps, Non-Allergenic & Washable

**Brand:** slumberdown
**Price:** € 570.38
**Availability:** ✅ In Stock

## Summary

> 🛌 Elevate your sleep game—because your mattress deserves a glow-up!

## Quick Answers

- **What is this?** Slumberdown 10cm Extra Deep Super King Mattress Topper - Ultra-Soft Box Quilted Breathable Thick Topper | 2-Year Guarantee, Elasticated Straps, Non-Allergenic & Washable by slumberdown
- **How much does it cost?** € 570.38 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/662109481-slumberdown-10cm-extra-deep-super-king-mattress-topper-ultra-soft)

## 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

- • **Stay-Put Security:** Durable elasticated straps hug your mattress tightly, ensuring the topper stays perfectly in place no matter how much you toss and turn.
- • **Ergonomic Spine Support:** Box-stitched quilting evenly distributes weight to ease back, hip, and shoulder tension—wake up refreshed and pain-free.
- • **Cloud-Like Comfort Upgrade:** Transform any mattress with 10cm of plush, hotel-quality softness that cradles your body for deep restorative sleep.
- • **Effortless Care & Confidence:** Machine washable and backed by a 2-year guarantee, combining luxury with practical durability for peace of mind.
- • **Allergy-Friendly Breathability:** Filled with hypoallergenic hollowfibre that promotes airflow and reduces allergy symptoms for a cleaner, healthier sleep environment.

## Overview

The Slumberdown 10cm Extra Deep Super King Mattress Topper delivers a thick, ultra-soft layer of breathable, non-allergenic hollowfibre with box-stitched quilting for consistent support and pressure relief. Designed with secure elasticated straps and a washable cover, it upgrades any mattress to hotel-quality comfort while easing aches and backed by a 2-year guarantee.

## Description

Product Description Slumberdown mattress toppers are a cost effective way to enhance your bed and revive your old and tired mattress for a luxurious layer of comfort and support. Our Extra Deep 10cm mattress topper is beautifully designed with a soft touch fabric & soft hollowfibre filling that bounces back. This 10cm extra deep mattress topper provides generous thickness that enhances your mattress’s softness while maintaining essential support, helping you drift off into restful slumber. Generously filled with premium hollowfibre for an ultra-soft and supportive feel all night long. The plush filling cradles your body, providing a cosy and a cushioned layer for cloud-like-comfort. No matter whether you have a single, double or king size bed, your bed topper will fit perfectly across the edge of your mattress to give that full bed comfort while keeping the filling in place. The elasticated corner straps on this mattress topper hugs your mattress securely. Whether you’re tossing and turning or enjoying a peaceful night's sleep, the durable straps keep the topper in place. Featuring a silky-soft microfibre cover with box stitched design adds a touch of elegance to your bedroom and ensures the filling stays evenly distributed for consistent comfort and support. Our soft mattress topper can be washed in the washing machine up to 40 degrees and cool tumble dried for a quick refresh so it can be back on your bed as soon as you need it. The Sleep Soundly Mattress Topper are easy and a cost-effective way to transform your old mattress into a plush and a cosy haven. Available in two depth options, 2.5cm Standard and 10cm Extra Deep. Buy Now The Sleep Soundly Mattress Topper are easy and a cost-effective way to transform your old mattress into a plush and a cosy haven. Available in two depth options, 2.5cm Standard and 10cm Extra Deep. The Climate Control Topper is filled with breathable temperate fibre that keeps you cool while keeping the night sweats away. Available in two depth options, 2.5cm Standard and 10cm Extra Deep. Buy Now The Climate Control Topper is filled with breathable temperate fibre that keeps you cool while keeping the night sweats away. Available in two depth options, 2.5cm Standard and 10cm Extra Deep. Experience the ultimate in sleep luxury with these hotel quality quilted pillows, designed to offer bouncy, firm support for a restful night's sleep. Available in 2 Pack and a 4 Pack. Buy Now Experience the ultimate in sleep luxury with these hotel quality quilted pillows, designed to offer bouncy, firm support for a restful night's sleep. Available in 2 Pack and a 4 Pack.

Review: Fab topper , super soft and great value !! Its lovely - This is fab so comfy and revived our mattress !!
Review: Softness and ease of fitting - Ordered this as new bed is arriving soon have put it on existing bed and love the feel and comfort it offers. It has sturdy elastic on each of the 4 corners for a secure fit is lovely and warm and good value for the price.

## Features

- Memory Foam-Like Support - Add a thick layer of ultra soft cushioning that instantly upgrades your old and tired mattress, without having to pay for an expensive replacement. The 10cm depth on this thick mattress topper delivers hotel-quality softness and pressure relief - perfect for a restful and deep sleep.
- Eases Back Pains & Aches - Evenly box stitched throughout to provide long-lasting shape and consistent depth. The quilted design on this soft mattress topper keeps the filling in place and distributes body weight evenly, supporting spine alignment - ideal for easing tension in the back, hips, and shoulders.
- Upgrade any Bed Instantly - Create a cosy and an inviting sleep space with Slumberdown 10cm mattress topper, adding comfort to firm, thin, or aging mattresses - ideal for spare rooms, rented flats, student beds, or Airbnb stays. Adds hotel-quality comfort without replacing your mattress.
- Non-Allergenic & Breathable - Wake up refreshed as this extra thick mattress topper is filled with non-allergenic & breathable hollowfibre, free from materials likely to trigger allergies. Enjoy clear breathing and fewer symptoms like sneezing, itching, or watery eyes.
- 2-Year Guarantee - Designed with comfort and craftsmanship in mind, all Slumberdown mattress toppers are made to the highest standards with exceptional attention to detail, and backed by a full 2-year guarantee for peace of mind.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0DGXPLMNV |
| Best Sellers Rank | 9,026 in Home & Kitchen ( See Top 100 in Home & Kitchen ) 45 in Mattress Toppers |
| Brand | Slumberdown |
| Colour | White |
| Customer Reviews | 4.4 4.4 out of 5 stars (1,086) |
| Date First Available | 13 Sept. 2024 |
| Item Weight | 5.36 kg |
| Material | Polyester |
| Product Dimensions | 200 x 180 x 10 cm; 5.36 kg |
| Special Features | Boxed Quilted, Extra Deep Filled, Non-Allergenic, Perfect for use in Camping, Campervan, Caravan and Motorhome, Strong Elasticated Corner Straps |

## Product Details

- **Brand:** Slumberdown
- **Colour:** White
- **Fabric Type:** 100% Microfibre
- **Size:** Super King

## Images

![Slumberdown 10cm Extra Deep Super King Mattress Topper - Ultra-Soft Box Quilted Breathable Thick Topper | 2-Year Guarantee, Elasticated Straps, Non-Allergenic & Washable - Image 1](https://m.media-amazon.com/images/I/4148XzXVpiL.jpg)
![Slumberdown 10cm Extra Deep Super King Mattress Topper - Ultra-Soft Box Quilted Breathable Thick Topper | 2-Year Guarantee, Elasticated Straps, Non-Allergenic & Washable - Image 2](https://m.media-amazon.com/images/I/417G6TOKtjL.jpg)
![Slumberdown 10cm Extra Deep Super King Mattress Topper - Ultra-Soft Box Quilted Breathable Thick Topper | 2-Year Guarantee, Elasticated Straps, Non-Allergenic & Washable - Image 3](https://m.media-amazon.com/images/I/41lmzMs14LL.jpg)
![Slumberdown 10cm Extra Deep Super King Mattress Topper - Ultra-Soft Box Quilted Breathable Thick Topper | 2-Year Guarantee, Elasticated Straps, Non-Allergenic & Washable - Image 4](https://m.media-amazon.com/images/I/519oAl0yIJL.jpg)
![Slumberdown 10cm Extra Deep Super King Mattress Topper - Ultra-Soft Box Quilted Breathable Thick Topper | 2-Year Guarantee, Elasticated Straps, Non-Allergenic & Washable - Image 5](https://m.media-amazon.com/images/I/51gLCwoQoxL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Fab topper , super soft and great value !! Its lovely
*by V***X on 8 December 2025*

This is fab so comfy and revived our mattress !!

### ⭐⭐⭐⭐⭐ Softness and ease of fitting
*by M***E on 2 September 2025*

Ordered this as new bed is arriving soon have put it on existing bed and love the feel and comfort it offers. It has sturdy elastic on each of the 4 corners for a secure fit is lovely and warm and good value for the price.

### ⭐⭐⭐⭐ Comfy and well made but not as thick as advertised
*by M***. on 20 December 2024*

Pros Well made and arrived in pristine condition (as in no broken straps, no tears and no dirty marks)- tick. Fits King Size as expected - tick. Adds softness, which is what I wanted - tick. Was a reasonable price - tick. Delivered promptly - tick. Cons - only 1 and this could be disappointing for people Not 10cm thick (that is the size I ordered) - got the measuring tape out to check! About 6cm in reality. The photo makes the item look really thick and what I got just isn't the same, so a bit of false advertising, tsk, tsk. If they advertised it as 6cm or 7cm then this would be a 5 star review. Can't be bothered to return it and quibble. Word to the wise My standard King Size flat sheet doesn't fit now this topper is on the bed, so will try a Super King size instead. Not anything to do with the item, just something to consider if you buy one and want your sheet to properly tuck under the mattress.

## Frequently Bought Together

- Slumberdown 10cm Mattress Topper Super Kingsize Bed - Extra Deep Hotel Quality Soft & Comfy Box Stitched Microfibre Super King Mattress Topper - Easy Fit Straps, Hypoallergenic, Washable (180 x 200cm)
- Utopia Bedding Fitted Sheet Super King, Grey - Deep Pocket 14 inch (35 cm) - Easy Care - Soft Brushed Microfibre Fabric - Shrinkage and Fade Resistant - Bottom Sheet

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**Shop now:** [https://www.desertcart.nl/products/662109481-slumberdown-10cm-extra-deep-super-king-mattress-topper-ultra-soft](https://www.desertcart.nl/products/662109481-slumberdown-10cm-extra-deep-super-king-mattress-topper-ultra-soft)

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*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-02-23*