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Thermarest Space Cowboy 45 Regular Sleeping Bag

★★★★★ ★★★★★
MSP £125.00 Save 20%

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Space Cowboy 45 Regular Sleeping Bag

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Product ID: 1372931

Thermarest Space Cowboy 45 Regular Sleeping Bag

Whether bikepacking, camping or travelling, Thermarest’s Space Cowboy 45 Regular Sleeping Bag is an inexpensive, easy to care for option. Synthetic eraLoft fill provides the insulation, with the hollow fibres trapping air whilst not soaking up any water, making it simpler to look after than a down-filled bag. By using carefully zoned insulation, 65% on the top and 35% on the bottom, weight is kept down without compromising warmth.

Should any extra warmth be required, the Space Cowboy range is compatible with Thermarest’s tech blankets, which can be attached to the provided loops to keep them in place. There are also SynergyLink connectors, which allow the sleeping bag to be fastened to a Thermarest sleep mat, keeping it from rolling off in the night.


  • eraLoft™ insulation: Efficient and compressible, water-resistant synthetic fill uses hollow fibres to reduce weight without sacrificing warmth
  • SynergyLink connectors: Integrate the bag with a mattress for optimal comfort and efficiency; removable for versatility
  • Zoned insulation: Maximises warmth and saves weight by intentionally placing fill where needed most. Placing 65% of the fill on top and 35% on the bottom keeps the Space Cowboy lightweight without sacrificing warmth
  • Quilt and blanket loops: Customise the sleep system by layering Thermarest quilts or tech blankets for increased warmth
  • Additional features: Snag-free zip and cinchable hood
  • Storage sack and compression stuff sack included
  • Left zip only
  • Width: 80cm
  • Length: 203cm
  • Fits: 183cm
  • Shoulder girth: 156cm
  • Hip girth: 147cm
  • Packed dimensions: 18cm x 25cm
  • Manufacturer’s claimed EN comfort rating: 11°C
  • Manufacturer’s claimed EN limit rating: 7°C
  • Manufacturer’s claimed EN extreme rating: -6°C
  • Fill weight: 250 grams
  • Manufacturer’s claimed weight: 570 grams

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