Engineered for harsh winter nights, the Mammut ThermoTrail offers serious performance for cold-weather campers. This affordable mummy sleeping bag for winter keeps heat locked in with its insulated hood, draft collar, and zipper baffle, ensuring restorative sleep in the coldest conditions.
- Tested comfort limit of 5°F (-15°C) — perfect for freezing temperatures
- Central two-way YKK zipper with insulated draft tube for better climate control
- Adjustable drawstring hood for added insulation and protection against wind
- Can be unfolded and used as a blanket when needed
- PFC-free water-repellent shell made from recycled fabrics
- Best winter sleeping bag for camping trips where durability and warmth matter
- Efficient anatomical footbox and spacious mummy shape
- Stuff sack included for easy packing
How to clean your winter sleeping bag: Hand wash with mild soap or use front-load washing machine on gentle cycle; avoid tumble drying to protect synthetic fill.
Kimberly Hudson (verified owner) –
Used this on a snowy weekend in the Rockies — stayed completely warm! Definitely the best winter sleeping bag for camping I’ve owned.
Stephanie Williams (verified owner) –
Love how light it is for a cold weather bag. I bought it after searching for an affordable mummy sleeping bag for winter and it exceeded expectations.
Tyler Brown (verified owner) –
The hood and insulation system kept out the wind perfectly. Great value if you’re looking to buy synthetic sleeping bag for cold weather camping!