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Sierra Designs Backcountry Bed 600F 3 Season Sleeping Bag


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Item # SDE94202M
The innovative Sierra Designs Backcountry Bed 600F 3-Season
zipperless sleeping bag provides campers with similar comfort to their beds at
home whether they’re back, side or stomach sleepers.



The innovative Sierra Designs Backcountry Bed 600F 3-Season zipperless sleeping bag provides campers with similar comfort to their beds at home whether they’re back, side or stomach sleepers. Featuring 600 fill duck DriDown water-resistant down and strong polyester ripstop shell fabric, the Backcountry Bed 600F 3-Season is a high-quality, comfortable bag for 3-season use that won’t break your budget.

Renowned for their efficiency in retaining heat and compressible properties, the feathers and fibers of down have an incredibly soft, comfortable feel, and despite advances in synthetic materials, continue to provide the best warmth-to-weight ratio of any insulation available. The one inherent weakness of down insulation is that it loses much of its ability to maintain warmth when it gets wet, but the DriDown featured in the Backcountry Bed 600F 3-Season bag performs differently. Employing a unique, innovative polymer application, DriDown actually creates a hydrophobic finish on each individual plume of down. This treatment results in insulation that stays dry up to 10 times longer and dries 33% faster, should it become wet, than untreated down bags.

By eliminating zippers, Sierra Designs has created a sleeping bag that’s more similar to your down comforter at home than a traditional sleeping bag, though without your comforter’s annoying ability to shift off your body in the middle of the night as you move. Get in the Backcountry Bed through the unique catenary shaped opening that’s smaller than bag width to seal out drafts even when you’re shifting inside. Once settled in, the versatile integrated comforter fits naturally around you and conforms to your preferred sleeping position while also allowing you to easily adjust for varying temperatures. Insulated pockets in the comforter provide a cozy place for your arms and hands to stay warm if you’re not cocooned down inside the bag, or tuck the sides of the comforter around and beneath you when the temperature drops to be fully ensconced; the top of the bag also allows you to tuck your head inside for insulated warmth much like a hood. A unique zipperless foot vent allows you to extend your feet out of the bottom of the bag in balmy weather but effectively retains heat when temperatures require it.

Beyond the zipperless construction, the Backcountry Bed 600F 3-Season has no additional cords or Velcro to get in the way of comfort, though it does feature a sleeping pad sleeve on the bottom to allow you to even better create a bed-like sleeping experience while spending the night outside.

The Sierra Designs Backcountry Bed 600F 3-Season sleeping bag is available in Regular (fits up to 6' 0") and Long (fits up to 6' 6") sizes. A stuff sack and storage sack are included.

California residents: view proposition 65 WARNING

  • 600 Fill Duck DriDown
  • Integrated comforter
  • Insulated hand/arm pockets
  • Zipperless design
  • Catenary shaped opening



Best Use Backpacking, Camping
Insulation Type Down
Warranty Lifetime
Type DriDown
Temperature Rating 15 Degrees F
Shell Material 30D Polyester Ripstop
Packed Size Regular: 8.5" x 16"
Long: 9" x 17"
Other Storage Sack Included
Liner Material 30D Polyester Taffeta
Item Weight Regular: 3 lbs 1 oz
Long: 3 lbs 5 oz
Fits to Length Regular: 6' 0"
Long: 6' 6"
Fits to Girth Regular: 61"
Long: 65"
Fill Material 600 Fill Duck DriDown
EN Lower Limit Rating 17
EN Comfort Rating 28


Real Customer Reviews

Average Rating:
(based on 11 real customer reviews)

1-10 of 11

  1. 1
  2. 2
Satisfied with this...
Reviewed by Gino - July 24, 2017

Likes: Well made; Love the design; Backcountry was awsome as usual. I found this at a slightly better price right after I ordered it, I told backcountry Edge and they price matched no question asked, I love ordering from this retailer.. This company is great online store in my opinion..

Dislikes: None, as of this writing, I've only use the bag twice since getting it, Its a little warm for a sleeping bag right now in the summer.

Great Bag
Reviewed by Dawid G. - May 30, 2017

Likes: Very comfy and very warm.

Dislikes: None

Reviewed by Alan O. - May 28, 2017

Likes: Foot hole at the bottm
Attached blanket
Pocket fot sleeping pad

Dislikes: None

Best bag ever
Reviewed by Bret W. - May 8, 2017

Likes: I'm a big guy (6'0", 250 lbs) and I fit nicely in this bag. It allowed me to move in a way I hadn't expected a mummy bag to. It was very comfortable on my side or my back, and in temps from 80 down to 40.

Dislikes: A bit more hip room might've been nice. It was harder to get out of than into.

Tested on Rainier
Reviewed by Michael T. - January 28, 2016

Likes: The bag was very warm and very comfortable to sleep in. The overall design was a lot more comfortable than your traditional mummy style sleeping bag. I used the bag on Rainier in July and was plenty warm. I slept most of the time will my feet out the footbox in order to cool down.

Dislikes: The sleeve in the back of the sleeping bag does not fit a neoair therm-a-rest pad.

great bag
Reviewed by Chris K. - September 5, 2015

Likes: very roomy and comfortable

Dislikes: nothing yet

Reviewed by Inside Edge Member - April 3, 2015

Likes: II allows me to sleep like I am at home. Push the cover back when it's warm. Lightweight and no zippers

Dislikes: Not sure if it will be warm enough for 20 degree nights. May need a liner

Reviewed by Inside Edge Member - December 21, 2014

Likes: Outstanding!

Have had the bag out twice in

Dislikes: None

Reviewed by Melissa R. - December 14, 2014

Likes: Comforter with hand pockets was great for side/stomach sleeping, feet can be extended out of bag hands free and it is lightweight.

Dislikes: A tad more room on the bottom half would be nice but it is still far better than a typical mummy style bag.

Reviewed by Inside Edge Member - November 24, 2014

Likes: Used the backcountry bed this weekend (21-Nov-2014) at the Red River Gorge in KY. The temperature was 20 degrees when I went to bed. The temp ratings for this bag are 23/13. When used with an inflatable 4" thick pad, this bag worked far better than expected. I really can't say enough about how well the system worked. I am a restless sleeper and tend to sleep on my side or stomach, which is why I chose this bag. It worked better than advertised. I actually got a little warm and used the foot vent. Don't let the fact that it doesn't have any zippers scare you away. It's actually thinking outside of the box at its best.

Dislikes: Nothing.

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