Sac de couchage Ohm™ 20F/-6C

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Therm-a-Rest

Sac de couchage Ohm™ 20F/-6C

Size
Ultralight backcountry performance meets frontcountry comfort.
  • Duvet hydrophobe Nikwax™ Hydrophobic Down™ de gonflant 900 : sans composés perfluorés (PFC), absorbe 90 % moins d’eau et sèche 3 fois plus rapidement que du duvet non traité.
  • Issu de l’élevage responsable selon les normes « Responsible Down Standard » : garantie que les oiseaux dont provient le duvet sont traités sans cruauté.
  • Volume extrêmement réduit une fois enroulé : tissu extérieur et garnissage isotherme ultraléger et conception précise, pour un volume extrêmement réduit une fois enroulé.
  • Bon volume intérieur : la forme semi-rectangulaire permet de dormir au chaud et sans contraintes.
  • Polyvalence : la fermeture à glissière se prolonge tout autour du pied : transformez-le en couette, laissez circuler plus d’air ou reliez entre eux deux sac Ohm.
  • Sac deux places : attachez deux sacs Ohm pour créer un couchage confortable pour deux personnes.
  • Chaleur raffinée : les cloisonnements et caissons intérieurs en maille mesh permettent d’optimiser l’épaisseur et de réduire les points froids. La collerette avec cordon de serrage évite les déperditions de chaleur.
  • Sac de compression et sac de rangement inclus.

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Quand le poids et le petit volume dans le sac à dos deviennent des critères importants, mais que vous ne voulez pas dire adieu à la chaleur et au confort, l’Ohm 20F/-6C est difficile à battre. Le sac de couchage Ohm ne pèse que 635 g (1 lb 6 oz) et offre un bon compromis pour vos sorties dans la nature, avec sa coupe spacieuse et la possibilité de le transformer en couette pour deux personnes. Garni de duvet hydrophobe Nikwax Hydrophobic Down™ au gonflant 900, il offre un excellent rapport chaleur/poids avec un garnissage isotherme résistant à l’humidité qui sèche rapidement et se comprime en un petit volume. La structure cloisonnée assure son efficacité thermique et la répartition équilibrée de la chaleur. Le garnissage isotherme réparti par zone donne la priorité aux endroits où la chaleur compte le plus. Avec un tissu ultraléger et un duvet au gonflant extrême, le poids et le volume une fois le sac enroulé sont réduits au strict minimum. Offre unique dans sa catégorie, la fermeture à glissière se prolonge autour du pied : le sac peut s’ouvrir complètement pour se transformer en couette pour plus de confort et moins de contraintes par nuits chaudes. Vous pouvez empiler et relier deux sacs Ohm complètement ouverts pour créer un sac deux personnes comfortable quand vous partez en couple. Conçu avec la qualité et les caractéristiques de performance typiques de Therm-a-Rest, le sac Ohm polyvalent reste léger dans le sac à dos sans toutefois sacrifier les performances.
Regular Long
SKU 11403 11404
Color Balsam Balsam
Weight (Standard) 1 lbs 6 oz 1 lbs 9 oz
Weight (Metric) 0.64 kg 0.72 kg
Width (Standard) 32 in 33.5 in
Length (Standard) 73 in 79 in
Height (Standard) 4.5 in 4.5 in
Fits (Standard) 72 in 78 in
Fits (Metric) 183 cm 198 cm
Girth Shoulder (Standard) 62 in 66 in
Girth Shoulder (Metric) 157 cm 168 cm
Girth Hip (Standard) 56 in 59 in
Girth Hip (Metric) 142 cm 150 cm
Girth Foot box (Standard) 35 in 38 in
Girth Foot box (Metric) 89 cm 97 cm
Packed dimension (Standard) 6.5 x 8 in 6.5 x 8 in
Packed dimension (Metric) 17 x 20 cm 17 x 20 cm
EN Comfort (C) 0 C 0 C
EN Comfort (F) 32 F 32 F
EN Limit (C) -6 C -6 C
EN Limit (F) 20 F 20 F
Fill material 900 Fill Goose Nikwax Hydrophobic Down RDS 900 Fill Goose Nikwax Hydrophobic Down RDS
Fill weight (Standard) 12.5 oz 13.6 oz
Fill weight (Metric) 0.36 kg 0.39 kg
Shell fabric 10D Nylon RipStop w/ DWR 10D Nylon RipStop w/ DWR
Lining fabric 10D Nylon RipStop 10D Nylon RipStop
Country of Origin Made in China Made in China

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Overall rating: 4.2222223 / 5 from 18 reviews.

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Summary topics

Review topics: ["size","bag","quality","problem","fabric","design","quilt","temps","32° semi","spot","night","use"].

Review highlights

Reviews

Light and Versatile!

"This bag is incredibly light and warm. I love how I can open it up fully to use as a blanket on warmer nights as well. My partner has a 20 degree enlightened equipment revelate quilt and is jealous that the OHm has more loft, is roomier, AND packs even smaller!"

Elizabeth S. (5/5)

Its nowhere as warm as

"Its nowhere as warm as it claims unfortunately."

Dagan J. (3/5)

Ultralight Go To 3 Season Bag

"Incredible! I was blown away at the construction quality, stitching and design features. The materials are extremely ultralight, yet plenty durable. The 900 Goose Down fluffs up super fast and stays in place during the night, no cold spots. Great color fabric very soft, packing size makes this the go to sleeping bag for all three seasons plus. Highly recommend the Ohm 20. I’ve had it in freezing temperatures with no issues. I’m using the long version."

Patrick L. (5/5)

Long & Regular Zip Together?

"Just ordered a regular size and im really excited it seems to have all the features i desire! I just have one question though -im curious if it is possible to zip together one long size and one regular size? Id like to have one for my larger partner and it would be super convenient if they still zipped together."

Parker (5/5)

My favorite Summer and shoulder season bag

"I've had the Ohm 20 degree bag for the past two years and it has been my go to bag during late spring through early fall. I find the bag quite comfortable down to about 25 degrees on its own, below that I sleep with a liner and have been comfortable down to 15 degrees. This bag is the perfect combination of light weight packability and camp comfort and I look forward to many more years of regular use from it."

Connor B. (5/5)

Soft but not warm enough

"Sleeping bag is very soft to the touch and extremely lightweight but unfortunately not warm enough for 40° let alone 20°, even with 9R of pads and a double layer of sleep clothing including a puffy. Also, the cinch cord at the top is too thin and poor quality and snagged on the cord lock during use, I think this would be better with shock cord. The bag could also be slightly roomier in the knee/hip area as my knee pressed into the side while side-sleeping and created a cold spot. I threw another cheap down bag over it to make it warm enough but for this price point I shouldn't have to do that. Very happy with the Xlite and Xtherm pads but unfortunately I will be initiating a return for this Ohm bag. I wanted to like it but I apparently I need something much warmer."

Cassandra (3/5)

Not worth the price

"Rated 20F. Best use, to be reasonably warm, is above 39! For the cost, this bag is of poor quality. Zipper always snags. Zipper is not of the size and quality for this bag. Draw cord is a thin, cheap quality, cordage. Lock device used for the cord is also not to the size/standard needed. Expected far better quality from ThermARest. Strongly recommend buying a better quality from other suppliers. If could give a non star rating would. One star is giving too much credit. Ther-A-Rest needs to take a close look at this product. Surprised it is still on the page. David camper/hiker. Not first time camper. Used many bags over many years. This one is a disappointment. Won’t be surprised honest eval will be hidden from customer viewing"

Disappointed C. (1/5)

Perfect 32° semi rectangular

"I love that this bag packs down so small. It worked perfectly for an overseas trip involving several nights in hostels. Also did a fall hunt trip is west Texas sleeping in the back of my truck, and an early season ski touring hut trip; ideal for all those situations. I flop around a lot sleeping so I love the semi rectangular design. I’m sure I’ll try it out for some fast and light adventures in the CO Rockies next summer, but it probably won’t be a shoulder season bag for me. Realistically, this is a 32°F / 0C bag (safety rating vs comfort rating) and I feel it should be labeled as such, just my opinion. The specs on the bag are clear about that and any smart consumer would read all of that before dropping the money. All that said, I love that a semi rectangular bag can pack down this small and I’m pleased to have added it to my gear collection."

Matthew B. (4/5)

Good sleeping bag, but...

"I bought the Ohm sleeping bag a few months ago and was immediately impressed by the quality and pack size. Unfortunately, after the first use I noticed that the sleeping bag had a somewhat unpleasant odour. It wasn't a chemical odour, but more as if the sleeping bag had been used a lot and hadn't been aired properly. This odour worsened with every use, even though I aired it outside after every single use. I then contacted Thermarest, who asked me to send in the sleeping bag, which I did. Unfortunately, the sleeping bag came back to me without further ado, even without the offer of cleaning. According to Thermarest, the odour was normal. I know that odour is a subjective thing. However, several friends of mine have confirmed my impression. If this is supposed to be the normal odour of this sleeping bag, it is definitely not acceptable, especially at such a high price. I have already slept in other, cheaper down sleeping bags where this was never the case. All in all, I am therefore unfortunately very disappointed with the product and would have expected more overall, including in terms of customer service."

Joana (2/5)

Left zip only?

"I was looking for a compact, warm, right zip bag for hammock camping. Since the Ohm can pair up with another Ohm, I thought it could be right or left zip. However the baffle tube is set up for a left zip sleep, so unfortunately I had to return it."

Mark K. (4/5)

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