About this product
Envelope Cotton Sleeping Bag – in stock at 361 Degrees Adventure in Dar es Salaam.
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
Buying a Envelope Cotton Sleeping Bag in Dar es Salaam
361 Degrees Adventure keeps the envelope cotton sleeping bag at our showroom in Upanga, Dar es Salaam, with delivery countrywide across Tanzania. Come and handle it before you buy, or order online and collect.
Every envelope cotton sleeping bag is checked in store before it leaves us, and our staff use the same kit in the field, so you get an honest answer on fit and sizing rather than a sales pitch.
Not sure which envelope cotton sleeping bag suits you? Call or message the showroom and we will talk you through the options that are actually in stock in Tanzania.
Spare parts and replacements for the envelope cotton sleeping bag are easier to get here than on an overseas order, which matters once the gear is in use.
Browse more Sleeping Bags in Tanzania, or see the full 361 Degrees range. For general background on sleeping bags, see this overview on Wikipedia.




























Naturehike Hooded Envelope Cotton Sleeping Bag – M400