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Never sacrifice warmth and comfort for ounces in your pack again with the Therm-A-Rest Haven 20 Degree Sleeping System. At an ultralight 1 lb 6 oz, the sleep system provides warmth and comfort down to 20 F. A fusion between a mattress and a sleeping bag with a zipperless design, this sleep system holds in heat without the bulk of extra insulation. Full coverage with 700-fill down keeps you warm while staying ultralight. Roomy enough for your favorite mattress. There is a reason this ultralight, ultra-comfortable and versatile sleep system was chosen by National Geographic Adventure magazine as one of 26 most groundbreaking products in 2010. Plus, all the cool kids have one.

Chosen by National Geographic Adventure magazine as one of 26 most groundbreaking products for 2010. "It's been a long time since a sleeping bag could boast true innovation, yet the [Haven] Top Bag has done just that," wrote Adventure West Coast Editor Steve Casimiro. Selections were made by the editors with input from a Retail Advisory Board composed of 34 of the leading U.S. Outdoor Retailers.

DECENT FEATURES of the Therm-A-Rest Haven 20 Degree Sleeping System

• Ultralight warmth eliminates zippers and unnecessary fabric and fill beneath you to achieve EN 13537 -6° C (20° F)-rated comfort at just 22 oz (624 g)
• Technical performance durable 20D nylon shell, and 700-fill down combine with a full hood, modified foot box and wrap-around coverage to provide reliable warmth with minimal draft
• Exceptional versatility can be strapped to any mattress, used on top in warmer weather or slip a tapered ProLite or ProLite Plus mattresses inside for maximum cold-weather performance
• Unparalleled comfort no more sleeping like a mummy, trying to find out which way is up, or searching for your zipper - we've delivered room where you want it without excessive gaping for maximum efficiency

The SPECS

• Temperature Rating: -6° C / 20° F

• Weight: 1 lb 6 oz / 624 g

• Weight: 1 lb 8 oz / 695 g

This product can only be shipped within the United States. Please don't hate us.