Therm-A-Rest sleeping bags

There is nothing worse than waking up in the middle of the night with half of your body on the cold tent floor or a zipper pressing against your face. In order to create a more solid foundation that keeps you comfortably on your sleeping pad all night, many outdoor brands have moved to control the design of both the pad and sleeping bag. Therm-A-Rest started the process with a line of down blankets and top bags, but now plans to round out their sleep system collection with a full line of sleeping bags for Fall 2013. 

Therm-A-Rest's current sleep system collection includes down blankets and top bags that can be strapped or snapped onto any sleeping pad. For those of you looking for a more versatile and normal sleeping bag experience, Therm-A-Rest has now added a line of five bags with a unique design that creates a better synergy between bag and pad. 

The underside of the sleeping bags features two stretchy bands that wrap around and secure to your Therm-A-Rest or any other sleeping pad up to 25 inches wide. The bands can be connected at any height in order to keep you from sliding off your pad in the night and also keep your bag from getting all twisted as you roll from side to side. 

To avoid feeling too constricted when attached to the sleeping pad, Therm-A-Rest added some space in the upper body. Not quite going the Big Agnes or blanket route and completely eliminating any underside insulation, Therm-A-Rest simply cut down on the amount beneath you in order to shave some weight. 

The sleeping bag line includes three 750-plus goose down filled bags and two synthetic filled bags. The three down bags are the 0-degree Altair (2 lbs 7 oz.), 20-degree Antares (1 lb 7 o.z), and the 45-degree Navis (1 lb 5 oz.). The two synthetic bags are the 0-degree Centari (3 lbs 15 oz.) and the 20-degree Saros (2 lbs. 15 oz.).

Look for the new Therm-A-Rest sleeping bags to hit the shelves January 2013. 

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  1. Nice, I’ve been looking at down quilts and it looks like these would be right in that range with a 1 lb 7oz 20 degree down bag.

  2. This is a great sleeping bag. Love the color. 🙂 Thanks for the review.
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  3. Not to detract from Thermarest’s new product, but Big Agnes bags are designed with a *mostly* univerisal pad sleeve. I’m not sure if it’s the case with all models, but the bag I have actually does not have any fill on the bottom of the bag, allowing the pad to serve as insulation and save pack space all at once, which fits my Thermarest pad perfectly.

  4. The weight ranges are ridiculously close to those of a 800-850 fill down mummy bag.

    a 0 degree bag with a hole at the bottom for 2#7? A 5 degree Western Mountaineering Antelope weighs 2 ounces more.

    This concept would only be worth it if they used 850 fill, where true eight savings would be accomplished. using 750 down as opposed to 850, IMO, is negating any weight savings.

    Look at the 45 degree Navis. It weighs 1#5 and HAS NO HOOD. My Mountainhardwear Phantom 45 with 800 fill down HAS A HOOD and weighs LESS… 2 ounces less.

    If they wanted weight savings by redesigning the sleeping bag concept, WHERE ARE THEY?

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