0°C

Thermarest Ohm 32 UL Hoodless Down Sleeping Bag

0°C Comfort Limit, 235g of 900 Fill Nikwax Hydrophobic Down
Weighs 520g (Regular bag)
Code: SS19114V
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Find balance with the Ohm's featherweight, 18 oz construction and roomy, semi-rectangular shape.

Therm-a-Rest says:

The Ohm 32F/0C sleeping bag brings versatility to ultralight adventures with the ability to convert into a quilt and by featuring a roomy, semi-rectangular fit. The bag uses thermally-efficient box baffled construction to ensure warmth and comfort in an ultralight package. Designed with high-quality materials and Therm-a-Rest performance features, the Ohm gives you versatile options while providing a featherweight pack and uncompromising comfort. Storage sack and compression stuff sack included.

Firstly Therm-a-Rest's Ohm 32 doesn't have a hood, the point of this being to save weight. You can replace the hood with a beanie hat if you're pushing this bag to near its temperature limit. I personally wouldn't miss a hood but I also am not sure as to how comfortable sleeping in a beanie would be either...

The highlight of the bag is the quality of the down that is used. 900+ fill power down is pretty much the highest quality down that you can get in any sort of usable quantity, the higher the fill power the warmer the down is for the same weight used.

The bag is a little narrow at the foot end and tapers out at the knees to be quite spacious from there upwards. I'm 6' 1" and found that the neck baffle was in the right place for me, I think any taller than this and you may start exposing the tops of your shoulder a little. The cord adjuster to tighten the neck baffle is a bit annoying to adjust whilst in the bag, moving it internally would be my suggestion for any future revisions to the Ohm.

The bag zips out flat and can be used as a blanket for 1, maybe at a push two people but they would have to be very friendly, and I think it would need to be quite a mild night in both instances.

- Reviewed by Ultralight Outdoor Gear

Help and advice:Choosing a sleeping bag advice
 EN 13537 rating for sleeping bags explained
 Sleeping bag shape and sizes advice
 Sleeping Bag features Page 1
 All about down filling in sleeping bags
 
  • Ultralight: The lightest piece in its class, the Ohm sets a new standard for high-performance outdoor equipment
  • 900-fill Nikwax Hydrophobic Down™: Stays drier and maintains loft 60 times longer than untreated down
  • Unrivaled Packability: Lightweight materials and precise design allow for a smaller packed size than ever before
  • Box Baffled Construction: Uses mesh walls to maximize loft and minimize cold spots
  • ThermaCapture™ Lining: The bag is lined to trap radiant body heat and retain warmth without adding bulk or weight
  • Roomy fit: Semi-rectangular shape allows for a spacious and warm night at camp
  • Versatile: Open the bag in milder weather as a quilt for one or zipped with another Ohm for two campers
  • Responsible Down Standard Certified: Certification that ensures that the waterfowl in the down supply chain are treated humanely

Regular

  • Fits: 183cm (6ft)
  • Girth: 157cm at shoulder, 142cm at hip, 89cm at foot
  • Fabric: 10D Nylon Ripstop w/DWR 10D Nylon Ripstop Therma-Capture Lining
  • Fill: 900 fill GooseNikwax Hydrophobic Down, RDS
  • Fill weight: 235g
  • Stuffed size: 15 x 18cm (6 x 7in)
  • Comfort rating: 5°C
  • Comfort Limit: 0°C
  • Weighs: 520g excludes storage & stuff sack)

Long

  • Fits: 198cm (6ft 6in)
  • Girth: 168cm at shoulder, 150cm at hip, 97cm at foot
  • Fabric: 10D Nylon Ripstop w/DWR 10D Nylon Ripstop Therma-Capture Lining
  • Fill: 900 fill GooseNikwax Hydrophobic Down, RDS
  • Fill weight: 305g
  • Stuffed size: 15 x 18cm (6 x 7in)
  • Comfort rating: 5°C
  • Comfort Limit: 0°C
  • Weighs: 586g (excludes storage & stuff sack)
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