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Celestrum Sleeping Bag: 20F Synthetic - Women's

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Divine warmth.

There's nothing quite as comforting as crawling into your Marmot Women's Celestrum Sleeping Bag after a long day of hiking, biking, and general rabble rousing. Ideal for just about everything that involves sleeping in a tent, the Celestrum is assured to keep you cozy down to 20-degrees Fahrenheit thanks to its unique combination of strategically mapped insulation. Specifically speaking, the Celestrum is outfitted with water-repellent 650-fill down insulation throughout the main portion of the bag while the synthetic SpiralFil insulation keeps your feet cozy warm, even when condensation builds up on the inside of your tent. The women-specific fit ensures maximum warmth and the insulated draft tube keeps the persnickety cold from sneaking its way through to your jammies. 


  • Water-repellent
  • Hydrophilic 650-fill down insulation
  • Spiralfil synthetic insulation
  • Full-length zipper
  • 3D hooded construction
  • Internal stash pocket
  • Insulated draft tube
  • Compression and storage sack are included
  • Item #MAR00TI
[shell] 30D nylon ripstop, 70D polyester, DWR coating, [lining] 30D nylon, DWR coating
SpiraFil, 650-fill down
Max User Height
[regular] 5 ft 6 in, [long] 5 ft 10 in
Shoulder Circumference
[regular] 56 in, [long] 59 in
Hip Circumference
[regular] 56 in, [long] 59 in
Foot Circumference
[regular] 37 in, [long] 39 in
Bag Length
[regular] 78 in, [long] 81 in
Draft Tube
[internal] 1 stash
Fill Weight
[regular] 20.4 oz, [long] 22.2 oz
20 F
European Norm Comfort Rating
19.9 F
European Norm Lower Limit Rating
7.3 F
Stuff Sack
Stuff Size
9.5 x 19 in
Claimed Weight
[regular] 3 lb 11 oz
Recommended Use
Manufacturer Warranty