One Planet Cocoon Mummy Sleeping Bag

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Size: LARGE/700 LOFT/-8


The Cocoon has one of the best warmth-to-weight ratios in One Planet's range, making it a popular choice for the lightweight adventurer. The sumptuous, highly breathable 10-denier Vapour Vent is used as both inner and outer fabric; it’s a real weight saver, as is the body-hugging mummy shape. Your down won’t be going anywhere thanks to the combination of vertical chest baffles and our famous V-baffles, while the hood and neck closure stop your warmth escaping. The flexibility of a full-length zip helps your night time metamorphosis into a well-rested, happy little camper.

  • Generous mummy shape maximises thermally efficiency without restricting movement or comfort
  • Box-wall baffles give maximum thermal efficiency
  • Vertical-V baffling system reduces down migration, keeping it trapped where you need it most
  • Differentially cut baffles promote full and complete lofting of down
  • Large foot-box reduces down compression while giving enough height for your feet and space to wriggle your toes</li
  • The contoured full hood encloses your head, cinching tight while leaving enough space for your nose and mouth
  • Hood and neck baffle integrate to prevent warmth escaping
  • A draught tube along the zip insulates the zipper area, keeping warmth in
  • Full-length side zip from hood to ankle: a YKK #5 with locking slider and innovative, anti-snag cover
  • Hydrophobic Down repels water, helping down stay lofty in all conditions
  • Your choice of down: ethically-sourced Hydrophobic Down in either 700-750 loft, or lighter (but just as warm) 800-850 loft
  • Water-resistant thread used to make a durable, well-sealed sleeping bag