About this product
The bag you can put in the washing machine. Most sleeping bags need specialist cleaning, which is why so many of them go years without a wash – this one has a 210T polyester pongee shell and a washed-cotton lining built to come out of a domestic machine unchanged.
The M400 is the warmest of the series, with 400 g/m2 of hollow-fibre fill and an EN comfort rating of about 1 °C. It is cut as a hooded envelope, 30 cm longer at the head than the body length, so the hood is part of the bag rather than an add-on, and the zip opens fully so it lies flat as a quilt.
Key Features
- Machine washable – the whole point of this model
- 400 g/m2 hollow-fibre fill, the warmest in the series
- EN rated, so the figures compare properly against other bags
- Built-in hood rather than a separate attachment
- Zip opens fully so the bag lies flat as a quilt
- 210T polyester pongee shell with a washed-cotton lining
- Synthetic fill keeps insulating when damp, where down does not
Who It Suits
- Cold nights by Tanzanian standards – the Southern Highlands, Ngorongoro rim, high-altitude camps
- Family camping and shared or hired-out gear, where bags need regular washing
- Car camping, where 1.85 kg is not a problem
- Anyone who has given up on getting a sleeping bag properly clean
What’s Included
- M400 hooded envelope sleeping bag
- Storage sack
Naturehike Hooded Envelope Cotton Sleeping Bag – M400