Therm-a-Rest® - Sleeping Pads, Bags & Outdoor Comfort

Boost 650™ 20F/-6C Sleeping Bag

Boost 650™ 20F/-6C Sleeping Bag - Main image
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$224.96 $299.95 In stock

Category: Three Season Sleeping Bags

The Therm-a-Rest Boost 650TM 20F/-6C Sleeping Bag is an ultra-comfy three-season backpacking bag designed for adjustable shape and warmth. Ideal for campers and hikers seeking versatile comfort in mild to cool conditions.

  • Temperature rating: 20°F / -6°C for three-season use.
  • Adjustable shape and warmth to suit personal preference.
  • Available in multiple sizes: Short, Short Wide, Regular, Regular Wide, Long, and Long Wide.
  • From Therm-a-Rest, a trusted brand in outdoor comfort.
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Express Shipping · United States: $3.99

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (4.6 / 5 · 5 reviews)

David Z. ★★★★★

I love how the adjustable shape lets me customize the fit—plenty of room to move my feet without feeling drafty. Used it on a damp night around 35°F and stayed perfectly warm.

Hazel ★★★★★

I've been using this bag for spring and fall trips and the adjustable shape is what sold me. Being able to open it up like a quilt on warmer nights kept me from overheating, then cinch it back down when temps dropped.

Penelope S. ★★★★★

Took this on a three-night trip in the Rockies and the adjustable shape actually made a difference—I could loosen it up when it got warm and cinch down when temps dropped near freezing. The 650 fill kept me warm without feeling bulky in my pack.