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Insulated Envelope Sleep Sack for Cold Weather Camping – Adult Size with Carry Pouch | Thomler
Rest Easy Under the Stars, No Matter the Temperature
When the sun goes down and the cold sets in, you need reliable gear that keeps you comfortable through the night. This oversized rectangular sleep sack combines a plush polyester interior with heat-trapping hollow-fiber fill, delivering dependable insulation for outdoor trips. Whether you're pitching a tent in the mountains, sleeping under the stars on a backpacking route, or seeking extra warmth on cool-weather getaways, this generously sized design gives you room to move while locking in body heat. The included compression sack makes packing effortless, and the lightweight construction won't weigh down your pack.
Why You Need This
- Reliable Cold-Weather Protection: Hollow-fiber insulation retains warmth in temperatures down to 14°F, keeping you cozy when the mercury drops.
- Spacious Rectangular Cut: Envelope-style shape offers ample interior space so you can shift positions comfortably throughout the night.
- Soft, Skin-Friendly Lining: Smooth polyester interior feels gentle against your skin and wicks away moisture for better sleep quality.
- Built for the Trail: Weighs just 3.5 lb and packs down small, making it ideal for backpacking, car camping, or overnight adventures.
- Fits Taller Sleepers: Designed to accommodate adults over 6 ft 7 in, so you won't feel cramped or squeezed.
- Easy Transport and Storage: Comes with a dedicated carry bag that compresses the sack for hassle-free packing and neat storage at home.
Adventure-Ready Comfort You Can Count On
From weekend campouts to multi-day treks, this sleep sack handles the demands of outdoor living with ease. The durable outer shell stands up to rough ground and repeated use, while the efficient hollow-core fill balances warmth with breathability—so you don't overheat on milder nights. It's a versatile solution for campers, hikers, and travelers who refuse to sacrifice comfort when they're off the grid. Plus, every order ships free across the United States, and our 30-day return policy ensures you can test it on your next trip with complete confidence.
Free shipping across the United States — always, with no minimum order.
Every order is carefully packed and sent with Track & Trace, so you can follow your package every step of the way.
Order today? We ship the next business day.
Not completely happy? You have 30 days to return your purchase.
On top of that, we offer a 3-year warranty against manufacturing defects — your investment is in good hands.
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Practical pieces you’ll actually use.
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Yours, the moment we pack it
- Hand-packed with care
- Checked before it ships
- Arrives exactly as pictured
Straight From Your Camera Roll
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A note from our team
Shopping for your home shouldn't feel like a gamble.
Too many products look great online and disappoint when they arrive. That's why we only pick pieces we'd happily put in our own homes.
Not right for you? Send it back within 30 days, no hassle. And when you email us, a real person from our small team answers.
The Thomler Team
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