---
product_id: 200432495
title: "SLUMBER CLOUD Lightweight Comforter - NASA Temperature Regulation Technology - Down Alternative Cooling Comforter - Hypoallergenic White King"
brand: "slumber cloud"
price: "£241.14"
currency: GBP
in_stock: true
reviews_count: 8
url: https://www.desertcart.co.uk/products/200432495-slumber-cloud-lightweight-comforter-nasa-temperature-regulation-technology-down-alternative
store_origin: GB
region: United Kingdom
---

# Machine washable & hypoallergenic NASA-inspired temperature regulation Lightweight & breathable 12” quilt boxing SLUMBER CLOUD Lightweight Comforter - NASA Temperature Regulation Technology - Down Alternative Cooling Comforter - Hypoallergenic White King

**Brand:** slumber cloud
**Price:** £241.14
**Availability:** ✅ In Stock

## Summary

> 🌙 Sleep smart, not hot — upgrade your nights with NASA tech!

## Quick Answers

- **What is this?** SLUMBER CLOUD Lightweight Comforter - NASA Temperature Regulation Technology - Down Alternative Cooling Comforter - Hypoallergenic White King by slumber cloud
- **How much does it cost?** £241.14 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/200432495-slumber-cloud-lightweight-comforter-nasa-temperature-regulation-technology-down-alternative)

## Best For

- slumber cloud enthusiasts

## Why This Product

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

## Key Features

- • **Effortless Care:** Durable and machine washable for hassle-free maintenance.
- • **Clean & Safe Sleep:** Oeko-Tex Standard 100 certified, free from harmful chemicals and allergens.
- • **Featherlight Luxury:** Ultra-lightweight design means cozy warmth without the bulk.
- • **Sleep Cool, Stay Fresh:** Patented ClimaDry fiberfill adapts to your body heat for all-night comfort.
- • **Impeccable Craftsmanship:** 12-inch quilt boxing locks fill in place for a sleek, polished look.

## Overview

The SLUMBER CLOUD Lightweight Comforter features patented ClimaDry by Outlast fiberfill technology, engineered to regulate temperature and moisture for a perfectly balanced sleep environment. Its breathable 12-inch quilt boxing ensures even fill distribution and a refined aesthetic, while hypoallergenic, Oeko-Tex certified materials guarantee a safe, clean rest. Designed for versatility, this king-size comforter is lightweight, machine washable, and ideal for hot sleepers seeking cool, comfortable nights year-round.

## Description

A better night’s sleep because of science. If you sleep hot, sweat cold, or just plain want to sleep better, you’re in the right place. Our advanced bedding and temperature regulating products transform the micro-climate of your bed into one that perfectly suits your body. A better night’s sleep because of science. If you sleep hot, sweat cold, or just plain want to sleep better, you’re in the right place. Our advanced bedding and temperature regulating products transform the micro-climate of your bed into one that perfectly suits your body. Shop Our Entire Collection Visit the Store Shop Our Entire Collection Visit the Store

Review: Absolutely worth your money! - i was skeptical about spending so much money on a flipping duvet that doesn’t even come with a cover! especially when i opened it and saw how thin/lightweight it was. however i was pleasantly surprised by how effective this duvet is as not causing overheating! where i live there are hot springs and summers with no AC and i struggle with overheating and night sweats especially now that i live with my partner who is a human heater. it’s safe to say that even when my bedroom is 80 degrees I happily get under the duvet because it helps me cool down and stay cool! i no longer sweat in my sleep and can be cozy and tucked in even during hot nights! 100%%% would buy again!
Review: Great product for hot sleepers! - As two hot sleepers, we absolutely love this! Such a great duvet for the summer. I'm female and sleep cooler than my partner, who is male, so for late fall/winter, we'll be using the medium-weight version. I personally think it looks beautiful even though it is thin. We have a brushed organic cotton duvet cover over it that has some stiffness to it so we think it looks great!

## Features

- Lightweight Cooling Comforter - Hypoallergenic, patented ClimaDry by Outlast fiberfill provides a down-like feel while regulating heat and moisture as you sleep
- Breathable 12” Quilt Boxing - 12’’ quilt boxing keeps the fill from shifting while adding a polished look
- No Harmful Substances or Chemical - Oeko-Tex Standard 100 Certified Technology
- Corner Loops - Corner loops keep it in place if used as an insert inside a duvet cover
- Easy to Care For - Just throw it in your home washing machine
- Versatile design - can be used as a cooling blanket or a cooling duvet insert.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B086R4VDL3 |
| Additional Features | Breathable, Hypoallergenic, Lightweight |
| Age Range Description | Adult |
| Best Sellers Rank | #594,309 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #316 in Bedding Duvets & Down Comforters |
| Blanket Form | Comforter |
| Brand | SLUMBER CLOUD |
| Brand Name | SLUMBER CLOUD |
| Color | White |
| Customer Reviews | 4.4 out of 5 stars 142 Reviews |
| Fabric Type | 100% Cotton Outer Fabric |
| Fabric Warmth Description | Lightweight |
| Fill Material | 50% ClimaDry™ by Outlast polyester fiberfill / 50% polyester |
| Item Dimensions L x W | 98"L x 108"W |
| Item Thickness | 0.25 Inches |
| Material | Cotton |
| Material Type | Cotton |
| Number of Items | 1 |
| Pattern | Solid |
| Product Care Instructions | Machine Wash |
| Recommended Uses For Product | Napping |
| Seasons | All |
| Size | King |
| Special Feature | Breathable, Hypoallergenic, Lightweight |
| Sport Type | Camping |
| Style | Modern |
| Style Name | Modern |
| Theme | Plain |
| UPC | 810006790696 |
| Unit Count | 1.0 Count |
| Water Resistance Level | Not Water Resistant |
| Weave Type | Plain |

## Images

![SLUMBER CLOUD Lightweight Comforter - NASA Temperature Regulation Technology - Down Alternative Cooling Comforter - Hypoallergenic White King - Image 1](https://m.media-amazon.com/images/I/51AlAheF0hL.jpg)

## Available Options

This product comes in different **Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Absolutely worth your money!
*by J***H on May 5, 2026*

i was skeptical about spending so much money on a flipping duvet that doesn’t even come with a cover! especially when i opened it and saw how thin/lightweight it was. however i was pleasantly surprised by how effective this duvet is as not causing overheating! where i live there are hot springs and summers with no AC and i struggle with overheating and night sweats especially now that i live with my partner who is a human heater. it’s safe to say that even when my bedroom is 80 degrees I happily get under the duvet because it helps me cool down and stay cool! i no longer sweat in my sleep and can be cozy and tucked in even during hot nights! 100%%% would buy again!

### ⭐⭐⭐⭐⭐ Great product for hot sleepers!
*by J***N on October 19, 2025*

As two hot sleepers, we absolutely love this! Such a great duvet for the summer. I'm female and sleep cooler than my partner, who is male, so for late fall/winter, we'll be using the medium-weight version. I personally think it looks beautiful even though it is thin. We have a brushed organic cotton duvet cover over it that has some stiffness to it so we think it looks great!

### ⭐⭐⭐⭐⭐ So Comfy at the Perfect Temperature all Night - Everyone Needs this Comforter!!
*by P***R on April 20, 2020*

If you're a sleeper who likes to fall asleep with your sheets/comforter on but then wakes up trying to shove all the covers off because you're too hot, look no further - you've found the perfect comforter right here. After sleeping with the lightweight cumulus comforter for only a week now, my sleep has improved significantly and I'll never be switching out my comforter brand again. I really like the lightweight version because you can easily layer it depending on the weather. The down-like material is also super comfy! When you're wrapped up in this comforter, unlike any other comforter I've had, I always feel cozy and can snuggle up without my body overheating. It wasn't until after sleeping with this that I realized how many times I woke up during the night due to being hot and wanting to move to a cooler part of the bed. I will be buying only Slumber Cloud products for my bed from now on! I am so glad that I found this product, and would really recommend that everyone should try this out.

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**Shop now:** [https://www.desertcart.co.uk/products/200432495-slumber-cloud-lightweight-comforter-nasa-temperature-regulation-technology-down-alternative](https://www.desertcart.co.uk/products/200432495-slumber-cloud-lightweight-comforter-nasa-temperature-regulation-technology-down-alternative)

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*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-06-29*