---
product_id: 728820420
title: "Sea to Summit Sleeping Bag Liner AREACTOR Reactor Thermolite"
brand: "sea to summit"
price: "956 kr"
currency: DKK
in_stock: false
reviews_count: 13
url: https://www.desertcart.dk/products/728820420-sea-to-summit-sleeping-bag-liner-areactor-reactor-thermolite
store_origin: DK
region: Denmark
---

# Compact 8x13cm stuff sack for easy carry Thermolite insulation for added warmth Ultra-light 260g packable design Sea to Summit Sleeping Bag Liner AREACTOR Reactor Thermolite

**Brand:** sea to summit
**Price:** 956 kr
**Availability:** ❌ Out of Stock

## Summary

> 🔥 Sleep smarter, pack lighter, adventure further! ⚡

## Quick Answers

- **What is this?** Sea to Summit Sleeping Bag Liner AREACTOR Reactor Thermolite by sea to summit
- **How much does it cost?** 956 kr with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/728820420-sea-to-summit-sleeping-bag-liner-areactor-reactor-thermolite)

## Best For

- sea to summit enthusiasts

## Why This Product

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

## Key Features

- • **Clean Comfort, Anytime:** Protects your sleeping bag from dirt and sweat, and washes & dries quickly for hassle-free freshness.
- • **Pack Small, Adventure Big:** Rolls into a tiny 8x13cm sack—perfect for minimalist packing and spontaneous trips.
- • **Move Freely, Sleep Soundly:** Mummy shape with box foot and drawcord hood lets you turn comfortably without losing heat.
- • **Designed for the Night Owls:** Light-colored top band guides you in low light, so fumbling in the dark is a thing of the past.
- • **Light as a Feather, Warm as a Hug:** Thermolite insulation boosts your sleeping bag warmth without the bulk.

## Overview

The Sea to Summit AREACTOR Reactor Thermolite Sleeping Bag Liner is a lightweight, compact, and insulated liner designed to add warmth and cleanliness to your sleeping bag. Crafted with Thermolite polyester and packed into a tiny 8x13cm Cordura sack, it features a mummy shape with a box foot and a drawcord hood for enhanced comfort and heat retention. Ideal for 3-season camping and hiking, it’s easy to wash, quick to dry, and perfect for millennial adventurers who demand performance without bulk.

## Description

Shop Sea to Summit Sleeping Bag Liner AREACTOR Reactor Thermolite. Free delivery and returns on all eligible orders.

Review: Useful piece of equipment - Lightweight and rolls up tiny, keeps your sleeping bag clean and allows you to turn in the night without your bag turning with you. Easily washed and dries quickly- although watch it if you are drying over a fire or stove as the material melts easily. Nice feature of a light coloured band round the to so you can see how to get in even in low light and the drawstring does increase the warmth in icy conditions (it opens with a pull so no danger of strangling yourself with it). Very good.
Review: Excellent for warm climates. Soft and comfortable. Plenty of space to move around in. - I crossed the Atlantic Ocean on a small sailing boat using this. It's perfect for warm environments and even when it's a bit chilly, it offers some protection and something to get cosy inside of. Feels lovely and soft. Rolls up easily and stuffs back into it's bag fairly quickly too - important when you're a yacht racer :) Washes easily. Useful if you want to sleep and protect yourself from lying straight onto a surface with no sheet. For colder environments you'd need a blanket or much something much thick. Anything under 15 degrees C and you'd be cold I think.

## Features

- Lighter weight, more packable than fleece
- Adds warmth to a sleeping bag
- Mummy shape with a box foot
- Draw cord hood with mini cord lock
- Colour of liner is black
- Packs into its own 8 x 13cm / 3" x 5" Sn240TM Siliconised CorduraR stuff sack

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000NQQ4VK |
| Age range | Adult |
| Batteries included? | No |
| Best Sellers Rank | 176,739 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) 126 in Sleeping Bag Liners |
| Brand | Sea to Summit |
| Color | One Color |
| Customer Reviews | 4.4 4.4 out of 5 stars (606) |
| Date First Available | 12 Mar. 2007 |
| Department | Men's |
| Features | Insulated, Lightweight, Compact |
| Fill material | Polyester |
| Height | 4 inches |
| Insulation material | Thermolite |
| Is discontinued by manufacturer | No |
| Item display length | 9 inches |
| Item display width | 6 inches |
| Item model number | 119 |
| Manufacturer | Sea to Summit |
| Material composition | Outer fabric material: 100% polyester |
| Material type | thermolite |
| Maximum height recommendation | 210 Centimetres |
| Number of items | 1 |
| Outer material | Nylon |
| Product Dimensions | 210.82 x 88.9 x 7.62 cm; 244.94 g |
| Seasons | 3 Seasons |
| Shape | Mummy |
| Size | One Size |
| Sport | Camping & Hiking |
| Style | Regular (83 X 35) |
| Usage | adventure, camping, hiking, outdoor, trail |
| Weight | 260 g |

## Product Details

- **Age range (description):** Adult
- **Brand:** Sea to Summit
- **Colour:** One Color
- **Material:** thermolite
- **Occupancy:** 1 Person
- **Seasons:** 3 Seasons
- **Shape:** Mummy
- **Special feature:** Insulated, Lightweight, Compact
- **Sport:** Camping & Hiking
- **Temperature rating:** broadband

## Images

![Sea to Summit Sleeping Bag Liner AREACTOR Reactor Thermolite - Image 1](https://m.media-amazon.com/images/I/71arKk+AobL.jpg)
![Sea to Summit Sleeping Bag Liner AREACTOR Reactor Thermolite - Image 2](https://m.media-amazon.com/images/I/816IPczixRL.jpg)
![Sea to Summit Sleeping Bag Liner AREACTOR Reactor Thermolite - Image 3](https://m.media-amazon.com/images/I/81CUVUFGrOL.jpg)
![Sea to Summit Sleeping Bag Liner AREACTOR Reactor Thermolite - Image 4](https://m.media-amazon.com/images/I/81o9v1euYbL.jpg)
![Sea to Summit Sleeping Bag Liner AREACTOR Reactor Thermolite - Image 5](https://m.media-amazon.com/images/I/91j4t+R2WBL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Useful piece of equipment
*by T***Y on 7 May 2019*

Lightweight and rolls up tiny, keeps your sleeping bag clean and allows you to turn in the night without your bag turning with you. Easily washed and dries quickly- although watch it if you are drying over a fire or stove as the material melts easily. Nice feature of a light coloured band round the to so you can see how to get in even in low light and the drawstring does increase the warmth in icy conditions (it opens with a pull so no danger of strangling yourself with it). Very good.

### ⭐⭐⭐⭐⭐ Excellent for warm climates. Soft and comfortable. Plenty of space to move around in.
*by M***Z on 7 September 2019*

I crossed the Atlantic Ocean on a small sailing boat using this. It's perfect for warm environments and even when it's a bit chilly, it offers some protection and something to get cosy inside of. Feels lovely and soft. Rolls up easily and stuffs back into it's bag fairly quickly too - important when you're a yacht racer :) Washes easily. Useful if you want to sleep and protect yourself from lying straight onto a surface with no sheet. For colder environments you'd need a blanket or much something much thick. Anything under 15 degrees C and you'd be cold I think.

### ⭐⭐⭐⭐ Decent sleeping bag liner
*by C***S on 27 June 2022*

This is a good enough sleeping bag liner that does the job. It can add a few degrees to a summer bag I use it with my 7 degree comfort limit bag as it extends its range a bit. It's comfy and soft, and it helps keep your sleeping bag clean. Once I camped out in a heatwave and used just this and it was great . I like sea to summit products, and lots of my sleep setup stuff is from them. The only negative is that I think this is a little pricey for a thin fabric sack

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**Shop now:** [https://www.desertcart.dk/products/728820420-sea-to-summit-sleeping-bag-liner-areactor-reactor-thermolite](https://www.desertcart.dk/products/728820420-sea-to-summit-sleeping-bag-liner-areactor-reactor-thermolite)

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*Product available on Desertcart Denmark*
*Store origin: DK*
*Last updated: 2026-02-20*