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ThermaRest Space Cowboy 45F Sleeping Bag

ThermaRest Space Cowboy 45F Sleeping Bag

Regular price $274.95 CAD
Regular price Sale price $274.95 CAD
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Warm weather sleeping bag with water-resistant eraLoft™ insulation for durable and lightweight performance at a great value.

The Space Cowboy sleeping bag welcomes the idea of sleeping out under the stars with the worry-free warmth of synthetic eraLoft™ insulation. Its hollow fibers allow it to retain warmth even when wet—shrugging off morning dew and drying out super fast. Weighing less than two pounds and with a comfort rating of 45F/7C, you’ll be plenty warm all summer, whether you’re road tripping or heading deep into the backcountry. Shell and liner are made of a light and soft, GRS-certified 100% recycled nylon and an anti-snag YKK® zipper keeps them free of accidental tears. For optimal efficiency SynergyLink™ Connectors mate the bag to your sleeping pad, preventing drafts and cold spots. The precision-tuned fit makes sure you have the space you need, while eliminating unnecessary drafts and weight.

This product is covered by ThermaRest's Better Sleep Guarantee. See WARRANTY section for details.


* Recycled Shell Liner: GRS-certified 100% recycled fabrics are eco-friendly while being lightweight, soft and durable; anti-snag YKK zipper ensures easy entries and exits and prevents tears.

* eraLoft™ insulation: Efficient and compressible, our proprietary synthetic insulation uses hollow fibers to trap air and boost warmth without added weight; dries fast and retains loft and warmth even when wet.

*SynergyLink™ Connectors: Ultralight straps create a secure bag-to-sleeping pad connection that optimizes the comfort and thermal efficiency of your entire sleep system.

* YKK® Anti-Snag Zipper: Prevents accidental tears and eases entries and exits.

* Heat-Mapped Zoned Insulation: Delivers an elite warmth-to-weight ratio by allocating insulation to where you need it and reducing it where you don’t.


Color: Celestial
EN Comfort (C): 11 C
EN Comfort (F): 52 F
EN Limit (C): 7 C
EN Limit (F): 45 F
EN Extreme (F): 21 F
EN Extreme (C): -6 C
Fill material: eraLoft Polyester Hollow Fiber

Weight (Standard): S:1 lbs 10 oz / Reg: 1 lbs 12 oz / Lrg: 1 lbs 14 oz
Weight (Metric): S:0.72 kg / Reg: 0.78 kg / Lrg: 0.84 kg
Width (Standard): S:28.5 in / Reg: 31 in / Lrg: 32.5 in
Fill weight (Standard): S:1 lbs 4 oz / Reg: 1 lbs 7 oz / Lrg: 1 lbs 9 oz
Fill weight (Metric): S:0.58 kg / Reg: 0.65 kg / Lrg: 0.72 kg
Length (Standard): S:73 in / Reg: 80 in / Lrg: 85 in
Height (Standard): S:3.5 in / Reg: 3.5 in / Lrg: 3.5 in
Fits (Standard): S:66 in / Reg: 72 in / Lrg: 78 in
Fits (Metric): S:168 cm / Reg: 183 cm / Lrg: 198 cm
Girth, Shoulder (Standard): S:57 in / Reg: 62 in / Lrg: 65 in
Girth, Shoulder (Metric): S:145 cm / Reg: 157 cm / Lrg: 165 cm
Girth, Hip (Standard): S:56 in / Reg: 57 in / Lrg: 58 in
Girth, Hip (Metric): S:142 cm / Reg: 145 cm / Lrg: 147 cm
Girth, Foot box (Standard): S:44 in / Reg: 46 in / Lrg: 51 in
Girth, Foot box (Metric): S:112 cm / Reg: 117 cm / Lrg: 130 cm
Packed dimension (Standard): S:8 x 10 in / Reg: 8 x 10 in / Lrg: 8 x 10 in
Packed dimension (Metric): S:20 x 26 cm / Reg: 20 x 26 cm / Lrg: 20 x 26 cm

What's Included

ThermaRest Space Cowboy 45F Sleeping Bag
Combo stuff and storage sack included.


Better Sleep Guarantee:
All Therm-a-Rest sleeping bags and quilts are also covered by the Therm-a-Rest Better Sleep Guarantee. When you wake up on a Therm-a-Rest sleeping bag or quilt, we're confident you'll wake up feeling better than ever. If you are not completely satisfied, return it to Therm-a-Rest within three months with the original receipt of purchase and we will give you a full refund- no questions asked.

Limited Lifetime Warranty:
Every piece of Therm-a-Rest gear is designed to endure the rigors of your time in the backcountry. Thermamest offers a Limited Lifetime Warranty on all products, except electronic devices, which have a 2-year Limited Warranty.

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