Boost the temperature of your sleeping bag with the Mummy Reactor Extreme W sleeping bag sheet from Sea To Summit. much more compact and lighter than a fleece bag, it increases the temperature of your sleeping bag by around 15°C!

The Radiator sleeping bag sheet from Cocoon increases the temperature of your sleeping bag by 9°C, plus it is very light and compact, it will be forgotten in your backpack and will be effective in case, a essential accessory for bivouacs in winter!

Le drap de sac de couchage Reactor Extrême de Sea To Summit, bien plus compact et plus léger qu'un sac en polaire, il augmente la température de votre sac de couchage de 15°C !

Ce drap de sac de couchage Reactor Compact Plus de Sea To Summit, augmente la température de votre sac de 11°C, de plus il est très léger, il se fera oublier dans votre sac à dos et sera efficace le jour J !

This WILSA fleece sleeping bag sheet allows you to increase the temperature of your sleeping bag by 5°C.