Similar to: REI Co-op Magma Sleeping Bag

Top Picks

Marmot Hydrogen Sleeping Bag
Top Pick

Best ultralight sleeping bag for thru-hikers tackling long, chilly alpine miles.

This is the ultimate choice for ounce-counters who refuse to compromise on warmth. By utilizing high-loft down and a streamlined mummy cut, it sheds significant weight for long-distance treks. You sacrifice a bit of wiggle room for that ultralight performance, but the trade-off is a noticeably lighter pack on the trail.

High Warmth

Moisture Resistant

Heat Retention

Dual Venting

Mountain Hardwear Bishop Pass
Runner-Up

Best versatile down bag for budget conscious backpackers.

This versatile down bag balances warmth and weight, making it a reliable choice for three-season backpacking and alpine adventures. Its thoughtful design, including a natural-fit footbox and efficient draft management, ensures comfort during cold nights without adding unnecessary bulk to your pack.

Down Insulation

Mummy Shape

Ergonomic Footbox

Anti-snag Zipper

Best lightweight down bag for weight-conscious backpackers seeking warmth.

This down-filled mummy bag prioritizes packability without sacrificing thermal efficiency. It’s an ideal choice for backpackers who need to shed weight, though the snug, contoured fit demands you be comfortable with a more restrictive sleeping experience in exchange for that warmth.

Water-Resistant Down

Heavy-Duty Zippers

Heat Retention

Durable Nylon

Best ultralight sleeping bag for weight conscious backpackers seeking versatile warmth.

Best lightweight mummy bag for dedicated cold weather backpackers.