Free Shipping offer is valid in the US lower 48 states only, and is not available for PO Boxes or Military APO/FPO addresses. Orders placed by 12:00 pm Mountain Time Monday - Friday will ship the same day. All other orders will ship the next business day. Discount codes are not valid on sale products, Pro purchases, Men's & Women's Tops, Bottoms, & Hats, High Side, and Studio. Limit one discount code per order.

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  • Synthesis 50 Degree
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  • Nitro 800 / 0 Degree

Our men's and women's zippered sleeping bags pack in all the warmth without the weight. For the adventurer that wants to travel light, fast, and most of all, stay warm when the mercury drops, Sierra Designs sleeping bags are the way to go. Smart details, innovative designs, and state-of-the-art materials all work together to keep you outside where you belong.