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Cosmic 40 Sleeping Bag: 40F Down 55 to 30 Degree Down Bags

Prices as of September 26, 2026, as listed by each retailer — verify the current price on the retailer's site before purchase.

Price history tracked at Macy's price tracker

14-day low
$159.95
Sep 14 · Macy's
Best price
$159.95
−0% vs high
14-day high
$159.95
All stores
$160$160$160
Sep 14Sep 26
  • Macy's
Lowest in 14 days: $159.95 at Macy's. Highest: $159.95. Current best is 0% below the 14-day high.

About this product

The Kelty Cosmic 40 Sleeping Bag is a mummy-shaped, lightweight sleeping bag designed for use in temperatures ranging from 55°F to 30°F. It features a 550-fill power down insulation that provides efficient warmth without added weight, with a nylon exterior treated with PFC-DWR for durability and protection. The bag includes a full-length right-side zipper, an expanded footbox for toe comfort, and an internal stash pocket for storing small essentials like a phone or headlamp. It packs compactly into the included stuff sack, making it ideal for quick overnight trips. Machine washable for easy care.

  • 550-fill down insulation
  • Mummy-shaped design
  • Expanded footbox
  • Internal stash pocket
  • Full-length right zipper
  • Packs into included sack

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Cosmic 40 Sleeping Bag: 40F Down 55 to 30 — Price History