Coleman

Coleman Big Bay 0 20 40 F Cold-Weather Sleeping Bag Adult Mummy Sleeping Bag with Headrest Foot Ventilation

$78.99
sizeS

1978+ bought in the past month

About this item

  • INSULATED BODY: Coletherm MAX Insulation provides superior heat retention in temperatures as low as 20°F, semi-sculpted hood helps lock in heat
  • FOOT VENTILATION: J-zipper lets you air out footbox on warmer nights
  • COMPRESSIBLE STUFF SACK: Makes it easy to quickly pack up and store sleeping bag
  • HEAT RETENTION: Thermolock draft tube prevents heat loss through the zipper
  • EASY ZIP: ZipPlow patented zipper design prevents snags so bag is easy to open and close
$78.99

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Product details
BrandColeman
ColorContains PFAS
Occupancy1 Person
ShapeMummy
SeasonsAll Seasons
Age Range (Description)Adult
SportCamping & Hiking
Special FeatureJ-zipper for foot ventilation, ZipPlow patented zipper design, Compressible stuff sack, Coletherm MAX Insulation, Thermolock draft tube See more
MaterialPolyester
Fill MaterialPolyester
Technical specifications
item_package_dimensions_l_x_w_x_h17.04 x 10.24 x 9.49 inches
package_weight2.58 Kilograms
item_dimensions_lxwxh16.5 x 10.6 x 3 inches
item_weight4 Pounds
brand_nameColeman
warranty_descriptionLimited Warranty
model_nameColeman Big Bay Sleeping Bag
colorContains PFAS
materialPolyester
suggested_usersunisex-adult
manufacturerColeman
part_number2158322
style20?f
included_componentsSleeping Bag, Stuff Sack
outer_materialPolyester
fill_material_typePolyester
sizeContains PFAS
sport_typeCamping & Hiking
best_sellers_rank#79,387 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #171 in Camping Sleeping Bags
date_first_availableOctober 1, 2021

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Customer reviews

4.6202 ratings
  1. 575%
  2. 413%
  3. 313%
  4. 20%
  5. 10%

Customers say

Customers find the sleeping bag warm, with one mentioning it worked well at 22 degrees, and appreciate its quality and size, with one noting it's wide enough for plus-size people.

★★★★★

Decent to 20°

LeupoldNovember 29, 2022✓ Verified purchase

Tested out a couple weeks ago where temp was just at 20°F. I'm a cold sleeper and I felt a slight chill at feet and legs, but warm everywhere else. I'm 6'3", wide shoulders, and size is plenty. With a little more preparedness in clothes layering I think I would have fared much better. One annoyance was the Velcro flap for top of zipper. Had to really fuss during the night reaching around to free it from it's anchor point and pull over zipper to keep it from unzipping, which is it's purpose and performed fine after all the fussing. Personally don't think the extra strip of Velcro to keep the flap out of the way is even necessary. I ended up putting a blank strip of Velcro over with non lock side out so I don't have to release the flap each time I want to place it over the zipper. Otherwise very pleased with the bag, especially the roominess and ability to turn without the whole bag moving with you. Read more

★★★★★

Good quality

AmazonCustomerSeptember 26, 2025✓ Verified purchase

Too warm to sleep hahaha, but it's a good sleeping bag Read more

★★★★★

Nice and big

Brad JustinenJune 26, 2025✓ Verified purchase

Nice and big and warm. Crushes down easily for such a big bag. Read more

★★★★★

Amazing

L. G. WinstonJanuary 8, 2024✓ Verified purchase

Amazing sleeping bag. Size; I brought XL & being 5'8"/185lbs I have plenty of room to twist / turn. Warmth; no heat in RV, 22 degrees for a few days & never felt chill inside the bag. Climb in the bag at 9:30pm & comfortable until 7am wakeup. I must have read reviews for 50 sleeping bag, extremely happy with this purchase. Read more

★★★★☆

Very large, rather comfortable, terrible stuff sack

GuyMay 26, 2024✓ Verified purchase

Great for car camping for larger individuals. I'm rather athletic and over 6' so it is nice to have a larger sleeping bag to spread out in. The mummy hood is rather awkward in most cases, but the material is flimsy enough that it isn't obnoxious unless the zipper is zipped all the way up. The real win in this design is the feet zipper. Being able to open the base of the bag up and put my feet out during warmer nights is luxury after a long day of exertion. The bag is very bulky and I wouldn't recommend it for overnight hikes. For a base camp at the trailhead or for car/RV camping, I loved it. I bought several bags to try at once and ended up using this one over 20 nights of traveling and car camping. The stuff sack is trash. Trying to get the bag back in was always a 5 minute effort. I expected the stuff sack to tear every single time - but somehow didn't... Great warm weather bag (or cooler weather if you're a hot sleeper) with cheap feeling materials that is very comfortable to sleep in. Read more

★★★★★

Comfortable bag for warmer weather.

K. StevensMarch 23, 2025✓ Verified purchase

Nice well-built, well designed sleeping bag for warmer weather. Nicely proportioned and roomy. Read more

★★★★★

Solid bag! Very comfortable, does the job

Michael C. DugganAugust 29, 2024✓ Verified purchase

I really liked this bag. Its a great size, fit me perfectly (6'0, 170lbs) and I was so so so comfortable in it. My only qualm with it was its weight and size since I wanted a backpacking bag. Otherwise this one did the trick, would recommend. Read more

★★★☆☆

Came used, shotty customer service

wyatt shacklefordDecember 30, 2023✓ Verified purchase

The bag itself is great and works awesome I love how easy it is to compress into the store bag but I was definitely not its first owner. It reeked like body odor and had dead weeds inside of it when I opened it up. I was in a pinch and absolutely needed the sleeping bag last minute and customer support wasn't helpful, I was ping ponged between Coleman and Customer support before being offered an exchange for another one. Read more

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