Big Agnes Buffalo Park Sleeping Bag

Priced: $129.95 Rated:   - 4 stars out of 5 by 9 reviews.
Big Agnes Buffalo Park Sleeping Bag
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Color: Rust
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Big Agnes Buffalo Park Sleeping Bag -

From Big Agnes, the Buffalo Park sleeping bag is perfect big guys or for car campers that want more room.



  • Fabric stiffeners on both sides of the zipper prevent annoying snags
  • Big Agnes Buffalo Park includes a nylon stuff sack
  • Ripstop nylon shell with has a Durable Water Repellent finish; cotton/polyester lining is soft against the skin and has a stain-resistant finish
  • Interior fabric loops stabilize a sleeping bag liner, sold separately


  • Underside insulation has been eliminated and replaced with a sleeve for a 25 in. wide Big Agnes sleeping pad, sold separately


  • Quallofil™ synthetic insulation works a lot like down, with minimal bulkiness and excellent packability; it provides warmth even when wet


  • Features a 2-way, full-length, locking zipper with a big, easy-to-grab zipper pull


  • Built-in pillow pocket can be stuffed with clothes or a travel pillow


  • Rectangular shape offers extra room in footbox and shoulders
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Average Price History: Price History
Review RatingNumber of Reviews
Activity:Family & car camping
Fill:Polyester fibers
Fill weight:20 ounces
Fits up to (in.):78 inches
Hip girth (in.):74.5 inches
Shell:Ripstop nylon
Shoulder girth (in.):80.5 inches
Sleeping bag shape:Rectangular
Stuff sack size:8 x 12 inches
Temperature rating (C):4 degrees Celsius
Temperature rating (F):40 degrees Fahrenheit
Weight:3 lbs. 2 oz.
Weight - metric:1.41 kilograms

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Big Agnes

Big Agnes Buffalo Park Sleeping Bag Reviews:

Positive Reviews:

Worked for me

I chose this because I'm a big guy (6'1, 260 lbs) and like to be warm AND have room and some of the mummy bags are too tight for me. I used it this past weekend camping at Assateague. It was about 42 degrees, I had on a thin long-sleeved shirt, and was toasty all night. Plus, I sleep on my side and this bag has room for me to turn inside of the bag, without turning the entire bag. I also like that my pad (Exped SynMat 7) fit in the bottom of the bag perfectly. The pillow fitting where I could stuff my clothes in to make a pillow and save weight in my pack is a good feature. This bag doesn't cover your head like other bags, so you need a hat on the cold nights. For the price, I don't mind wearing a hat.
Active Guy at REI on 04/04/2012

Great bag!

I'm a big tall guy. I had a mummy bag, but it restricted movement. I like having room to move my feet and arms. This bag gives plenty of room without losing heat. I rolled out the bag for the first time, got in, and immediately felt it warm up. A little thin for cold weather, but this will serve as a great outer if I ever need to double. The sack is comfortable without a pad, but if you like to not feel like you're sleeping on the ground, the pads are a great addition. The memory foam pillow is great as well. The bag rolls up and packs in a sack about 1/4 the size of the box it came in. Very light weight and perfect for backpacking.
Big Texan at REI on 11/11/2011

Great Bag for Those Who Like Room

Another big guy who backpacks but just can't do a mummy bag. This bag is able to fit inside my backpack, although it does take up a good bit of room.

I like that it is only insulated on one side. Allows me to have the non-insulated side up when it's a little warmer, then turn it over as the night gets colder.

Although the sleeve for the sleeping pad sounds like a good idea, I don't use it. Doing so prevents the bag from cinching up tight around your neck on cold nights.

Overall, this is an excellent compromise between space and weight.
RunTimRun26 at REI on 05/05/2012

What's not to like?

Two features attracted me to this bag. One was the estimated comfort range, the second was the dimentions. It doesn't get so cold in in Alabama that (to me) a "summer" bag would be fine by itself most of the time and require no more than a fleece liner on the cold nights. And, being a big guy and a "side sleeper", every spare inch is important. This bag fits the bill nicely. The fact that the mattress sleeve fits my air mat perfectly is an additional bonus.
Rob In AL at REI on 04/04/2012

great bag plenty of room

this was a great buy for me cause i am a bigger guy but i love camping and hiking and all the other light weight bags are just to cramped for me i stay warm in it and the sleeping pad sleeve is amazing you dont roll of your pad i have slept in it with out the pad and am still plenty warm great bag
jdupnorth at REI on 08/08/2011

Great for the big guy

Great combo of weight and size for big guys like me (6'1" 280). I had the Lumen and it was way to small like I was shrink wrapped and I couldn't get out. This bag has the room and packs small for your adventures.
Big Hiker at REI on 07/07/2013

Great Value

This bag is officially my favorite for the money, Big Agnes did a great job with the design. I no longer slide off of my pad because your pad is incorporated right into the bag.
Music Luvr at REI on 06/06/2012

A Big guys friend

At 6'4" 260 pounds most bags leave me feeling strapped in. Not the buffalo park. I have plenty of room to roll around even with big Agnes's thickest air mattress.
Polybius at REI on 07/07/2012

Negative Reviews:

excellent for tossers n turners

An okay summer bag - would be much much better if it had a wicking lining - instead it is cotton and so stays wet and cold and clammy if you sweat at all. If it had a decent lining, this would be a 5 star bag.

Otherwise, I like the design - the sleeping pad sleeve makes it perfect for tossers and turners. You stay on the pad and the sleeping bag doesn;t get all twisted around you. I like the roominess of this bag too.

I will look for a Big Agnes Deer Park model since it has a nylon lining - it's rated more warmly than I wanted, but it is better than being in a clammy bag.

Hey Big Agnes, put a better lining in the Buffalo Park bag!!!!
LoMa at REI on 09/09/2012