Marmot Never Winter Sleeping Bag: 30 Degree Down

We’ve read the reviews across the web for the Marmot Never Winter Sleeping Bag: 30 Degree Down and summarize the results below:

Universal Ranking

PeakScore: 82 (out of 100)
User Rating: 4.1 stars 
Expert Rating: 4.1 stars

Number of Ratings Reviewed: 32

Pros & Cons

Reasons to buy:

User Reviews

  • Keeps you warm during very cold temperatures.
  • Lightweight for easy packability and transportation.
  • The seams and the zippers are not directly next to you, so they do not make you cold if they press against your skin.
  • The material is soft and comfortable against your skin.
  • Compresses very well for easy storing in a backpack or suitcase.

Expert Reviews

  • Packs very small for an easily transportable option.
  • Very warm for a 30 degree bag and keeps you comfortable in sub-freezing temperatures.
  • Features an adjustable hood to keep your head warm in cold temperatures.
  • Provides enough room to move around a little bit and get comfortable, despite being a mummy bag.
  • Durable and long-lasting for many seasons of use.
  • The zip is full length for ample temperature regulation.
  • The nylon material is both lightweight and durable for abrasion resistance.
  • Features a draft tube behind the zipper to help seal in the warm air.
  • The bag stands up well against moisture and prevents the inside of the bag from getting wet while sleeping.

Reasons NOT to buy:

User Reviews

  • Some reports of the filling being poorly distributed and leaking.
  • Some user discrepancies about the accuracy of the temperature rating during cold weather.

Expert Reviews

  • The zipper can get stuck during use, limiting the ease-of-use.
  • More expensive than other sleeping bags on the market.
  • The only pocket could be slightly bigger and deeper to hold more gear.
  • Does not compress as much as other options on the market, like the Helium sleeping bag.


The Marmot Never Winter Sleeping Bag: 30 Degree Down is a durable and well designed option that works well for backpacking and camping during mild temperatures. Even though this bag might be a bit more expensive when compared to similar choices, if you frequently camp or backpack during early and late summer, this could be a good choice.


Note: User and expert rankings were reviewed across the web. Some expert reviews include these: 1, 2, 3, 4, 5, 6, 7, 8, 9.