TETON Sports Celsius XXL 0 Degree Sleeping Bag
ShelterCold shoulder-season and winter car camping for big-and-tall sleepers and restless sleepers who refuse to be strapped into mummy bags — roomy enough to move, warm enough for nights down to 0°F.

TETON Sports Celsius XXL 0 Degree Sleeping Bag

$89.99
★★★★★4.5(3,200 reviews)

The TETON Sports Celsius XXL 0°F sleeping bag is a roomy rectangular bag built for cold-weather car camping. Unlike restrictive mummy bags, the Celsius XXL gives larger sleepers space to move, with a soft poly-flannel lining and an adjustable hood that seals in warmth. Rated to 0°F (-18°C), it uses Superloft synthetic insulation that retains warmth even when damp. The full-length draft tube along the zipper blocks cold spots, and internal shoulder drafts and a zipper baffle keep heat from escaping. It includes a compression stuff sack for transport. At roughly 6 lbs packed, it's a car-camping and shoulder-season choice, not an ultralight backpacking bag — but for budget-conscious campers who sleep cold or want room to sprawl, it's one of the best-value warm bags on the market.

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Why You Need This

You're a bigger guy, it's 18°F outside, and every "cold-weather" bag on the shelf fits like a sock — shoulders pinned, feet crammed, zipper draft down your back all night. The Celsius XXL is the rare 0°F bag cut for actual movement: poly-flannel lining instead of crinkly nylon, an adjustable hood, and a full-length draft tube that kills the cold stripe along the zipper. You trade backpackability (it's ~6 lbs) for the first genuinely warm night's sleep you've had in a car-camping tent.

🏆 How It Compares

The roomy cold-weather answer to the catalog's $59.99 TETON Celsius Regular: the XXL adds real width and length for big or broad-shouldered sleepers who hate mummy bags, holding 0°F warmth at a similar price tier. If you're an average build, the Regular saves you $30 and about two pounds of pack weight for the same warmth; if this is for a large teen or a restless side sleeper, the extra room is worth every pound. Honest note: at roughly ten pounds it's strictly car-camping gear — backpackers should look at the $169 Kelty Cosmic Down, which packs to a third of the size.

Pros & Cons

✅ Pros

  • Roomy rectangular cut fits larger adults and restless sleepers who hate mummy bags
  • 0°F (-18°C) rating handles shoulder-season and winter car camping nights
  • Soft poly-flannel lining feels cozy against skin, not crinkly like nylon bags
  • Adjustable hood and full-length draft tube seal in warmth and block cold spots

❌ Cons

  • Weighs ~6 lbs packed — too heavy for backpacking, strictly a car-camping bag
  • Bulky even compressed — eats pack and cargo space
  • Synthetic insulation is less compressible and less durable than down over years

🎯 Who Is This For?

✓Larger adults and side sleepers who find mummy bags too tight — the XXL rectangular cut is one of the few 0°F bags built around their body, not the other way around
✓Couples and families car camping below freezing who want a flannel-lined, draft-sealed bag instead of stacking every layer they own
✓Budget cold-weather campers who want a dependable 0°F bag under $90 and don't care about the ~6 lb packed weight because the car carries it

Ready to Buy?

Check the latest price and availability on Amazon. Prices are accurate as of the date listed and may change over time.

Check Latest Price on Amazon →

Frequently Asked Questions

What is the TETON Sports Celsius XXL 0 Degree Sleeping Bag best for?

Cold shoulder-season and winter car camping for big-and-tall sleepers and restless sleepers who refuse to be strapped into mummy bags — roomy enough to move, warm enough for nights down to 0°F.

Who should buy the TETON Sports Celsius XXL 0 Degree Sleeping Bag?

Larger adults and side sleepers who find mummy bags too tight — the XXL rectangular cut is one of the few 0°F bags built around their body, not the other way around Couples and families car camping below freezing who want a flannel-lined, draft-sealed bag instead of stacking every layer they own Budget cold-weather campers who want a dependable 0°F bag under $90 and don't care about the ~6 lb packed weight because the car carries it

What problem does the TETON Sports Celsius XXL 0 Degree Sleeping Bag solve?

You're a bigger guy, it's 18°F outside, and every "cold-weather" bag on the shelf fits like a sock — shoulders pinned, feet crammed, zipper draft down your back all night. The Celsius XXL is the rare 0°F bag cut for actual movement: poly-flannel lining instead of crinkly nylon, an adjustable hood, and a full-length draft tube that kills the cold stripe along the zipper. You trade backpackability (it's ~6 lbs) for the first genuinely warm night's sleep you've had in a car-camping tent.

What are the drawbacks of the TETON Sports Celsius XXL 0 Degree Sleeping Bag?

Owners and reviewers call out a few trade-offs: Weighs ~6 lbs packed — too heavy for backpacking, strictly a car-camping bag Bulky even compressed — eats pack and cargo space Synthetic insulation is less compressible and less durable than down over years

How much does the TETON Sports Celsius XXL 0 Degree Sleeping Bag cost?

It is listed at $89.99 on Amazon. Prices on Amazon move around, so check the current price before you buy.

What do owners say about the TETON Sports Celsius XXL 0 Degree Sleeping Bag?

It carries a 4.5-out-of-5 rating from 3,200 Amazon customer reviews.

Have a question we did not answer? The Amazon listing carries the full spec sheet and customer Q&A.

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