The Easy Camp Devil Mummy is a polyester sleeping bag filled with hollow fibre rated at 2x100g/m². By using a tapered end, this sleeping bag retains heat, useful for when temperatures outside suddenly plunge. This sleeping bag is ideal for spring and summer camping, and has a comfort rating of -5ºC to -9°C. This sleeping bag has an extreme rating of -10ºC, should you find yourself caught outdoors in harsh weather conditions. This sleeping bag from Easy Camp features a two-way reversible zip, an inner pocket for storage of personal items and an anti-snag zip guard. This sleeping bag is machine washable.