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Groundwork Double Sleeping Bag: 20F Synthetic

3.8333333333333335 out of 5 stars
30 Reviews
Current price: $65.40 Original price: $109.00
40% off
Color:Dark Olive/Green Moss



Why We Built The Groundwork Double Sleeping Bag

We made the Stoic Groundwork Double Sleeping Bag because it's challenging enough to find a sleeping bag for two, and it's even harder to find a bag that feels comfy in colder and warmer temperatures. This double-wide sleeping bag offers soft warmth even when the forecast calls for gray skies and morning fog. You're welcome to cozy up with your partner, or unzip the bag into separate parts in case someone heads out on a solo mission.


  • A double-wide sleeping bag for adventures with your best friend
  • Water-repellent finish sheds light dirt and precipitation
  • Synthetic insulation retains warmth even when it gets wet
  • Soft fabrics feel comfortable while you lounge after a hike
  • Sleeping bag unzips into two separate bags just in case
  • Item #SICZ2DS
[face fabric] 20D mini ripstop nylon, DWR finish, [lining] 20D plain weave nylon
hollow fiber synthetic (2lb 8oz)
Shoulder Circumference
Hip Circumference
Foot Circumference
Bag Length
2 stash
Pad Retainer
European Norm/ISO Comfort Rating
European Norm/ISO Lower Limit Rating
Stuff Sack
Stuff Size
23 x 10in
Claimed Weight
5lb 10oz
weekend camping
Manufacturer Warranty
limited lifetime

Overall Rating

4 based on 30 ratings

Review Summary

1 Stars - 1 reviews
2 Stars - 5 reviews
3 Stars - 5 reviews
4 Stars - 6 reviews
5 Stars - 13 reviews

Fits True To Size

Screen reader users: the following list provides a visual scale to illustrate the product fit. Please refer to the heading above for the fit type in text.
Runs smallTrue to sizeRuns large

What do you think about this product?


Selecting an option will reload the available reviews on the page
5 out of 5 stars

November 9, 2023


I've used it several times

This is the best sleeping bag for two! It is very light and comfy and surprisingly very warm!

Elena U
4 out of 5 stars

August 13, 2023

Good trailhead camping bag

I've used it several times

This bag is a nice economical alternative to a down sleeping bag if you are only going to be trailhead camping. I am not sure it is 20F though, I think 30F would be a more fair rating.

Ryan T
2 out of 5 stars

July 20, 2023

No way this is rated to 20F

I returned this product before using it

Even unzipped and with the two bags doubled up there's no way this would get through a 40F night. Returning.

Emily E
3 out of 5 stars

June 30, 2023

Just OK

I've used it once or twice and have initial impressions

Pros: it is a double sleeping bag for a decent price, and my wife likes it. Cons: it’s definitely a Summer bag only. The 20°F rating is ridiculous. The color also looks more washed out than the photos (I got the oatmeal), and feels… cheap. Summary: my wife likes it so we will keep it… but curb your enthusiasm.

Justin P
3 out of 5 stars

May 11, 2023

You Get What you Pay For

I've used it once or twice and have initial impressions

Took it out of the box and tested out the compression straps to see how small I could get the bag. The plastic two prong clip instantly broke. I'm going to have to get external compression straps to solve this, or get another compression bag. Like the other reviews, this bag's lowest temperature is 50 degrees if you're alone, and maybe 40 degrees if you have a partner. I know my Fiancé will be cold, by just looking at this bag. I'm not going to be cruel and give less than three stars, this is a double sleeping bag for less than $50 on Steep and Cheap, sometimes you get burned when you try to save a buck! Points for being aesthetic and packing nicely with a small footprint.

Jacob P
5 out of 5 stars

May 10, 2023

Cute and cozy

I've used it once or twice and have initial impressions
Size Bought:
One size
5' 4"

It’s a lovely way to make camping more cozy and intimate! It was a little chilly for spring camping, but my girlfriend loves to cuddle (as do I) and I appreciated the functionality of a two person sleeping bag :)

Annalisa P
4 out of 5 stars

November 17, 2022

Do a gear check before you use it

I've used it once or twice and have initial impressions

I like to sprawl out and I run warm so this bag is great for what i need. If you camp below 50F think about wearing some base layers and socks to ensure you keep warm. Now the one bad thing. The compression sack. I hope this is just an oversight and not indicative of overall quality. But i tried to cinch down one of the straps and the quick release buckle just gave up. I tried buckling it again to see if it just worked loose in transit. Nope it slips with any snug pull. Then checking the strap i noticed it was sewn in backwards. With the pull strap end out the strap twists. So not only did they mess up in assembly of this part of the strap but the components were defective. I did try to cinch the other strap to see if both are poor quality but the other one held, barely. The snap buckles are undersized. So if you must compress down the bag then test these first thing. If you don’t need to shrink it then don’t worry if this happens as the stuff sack is fine. Customer support was very nice and quick and offered to send a whole replacement. I don’t need the compression so i will just fix the buckles myself. Just check your gear before you use it. You never know if. The person assembling your gear was feeling sleepy for that one product.

Nick B
4 out of 5 stars

October 7, 2022

It's a sleeping bag!

I've used it once or twice and have initial impressions

Bought this double bag for my wife and I to replace a lower quality one we had. Haven't been able to take it camping yet, but it did get some use sleeping in the hallway with the kids during the hurricane. It's definitely an upgrade over what we had. Lighter weight, better construction, packs better, and more comfortable. Stuff sack has lots of straps to cinch it down. It's pretty slippery though, which my wife is on the fence about (the reason for deducting a star).

Scott K
2 out of 5 stars

September 7, 2022

Sent it back immediately

I returned this product before using it

The straps on the carry casing popped off 5 seconds after unpacking this thing. Returned.

Kurtis V
2 out of 5 stars

September 4, 2022

Nice Summer bag, for 50+ degrees?

I returned this product before using it

Nice bag, but it is definitely not a 20 degree bag - - see other reviews. Out flat, it is definitely thinner than my 40 degree bag. Even 4 layers of this bag are still thinner than my 20 degree mummy bag. My best estimate would be no colder than 50 degrees and likely better at even warmer temperatures. See other reviews for the additional insulation needed in order to reach lower temperatures.

Trygve S