Big Agnes

Dream Island Doublewide 20°

Big Agnes Dream Island Doublewide 20°

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Overall

#80 in

Outdoor Sleeping Bags

according to Reddit Icon Reddit

Sentiment score75% positive
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Last updated: May 14, 2026

Reddit Reviews

Reddit IconP_Nis_
6 months ago

https://www.bigagnes.com/collections/doublewide-sleeping-bags/products/dream-island-doublewide-20?_pos=1&_fid=91e37c163&_ss=c This is what I bought. Big Agnes double sleeping bag. 20° f rating, and says it’ll fit up to 6’6”.

Reddit IconWa_wa_ouija
12 months ago

If you can afford it, the big agnes dream island is better. Girlfriend and I have started with the kelty, and then upgraded. If kelty is what you can afford you will like it. It's great. But the BA is better, packs down smaller, and is warmer and more comfy imo.

12 months ago

Exped megamat. We have the dream island 20. Take the blanket off of it when night temps are above 60. Down to 20 degrees we are happy with it. 10 ish degrees we will add a sleeping bag liner (just like a fleece blanket) 0 to -15 (that's the worst we've ever been in) we had the bag, sleeping bag liner, and stuffed a 20° quilt inside of the dream island. It was -15 and we were snuggling and comfy and warm. (Having to pee sucked though. Dream island is great. Absolutely love it. However spend your money on the megamat. It is literally the best thing I've ever spent money on lol. She is happy and sleeps well, and wants to go out all the time because of it. Also good to negative something colder than I would go out in.

Reddit IconHauntingArugula3777
6 months ago

Minnesota had its first snow last night it was 30-25 and very wet and crazy windy / gusty. My Crua maxx did just fine, I have a 28m rubberized canvas boat tarp under it and a hybrid tarp above, a have a moving blanket on the floor then the Big Agnes double pad and dream double sleeper. With just me and a dog it was (and is) roasty wearing hoodie and shorts. I am still there now.

Reddit Iconcece13cyr
2 months ago

I would go with a quilt, they are great for moving around. Zenbivy is most peoples favorite, I really enjoy my Big Agnes.

Reddit IconFL00D_Z0N3
5 months ago

If your biggest concern about a sleeping bag is room for your legs to move without feeling constricted, I would try out Nemo or Big Agnes sleeping bags. Both tend to have wider profiles. Definitely go for a bag that is rated at least 10 degrees lower - preferably lower - than the temps you expect to sleep in. Theres multiple problems with layering with clothing like this, one of which is not the warmth specific factor but the breathability. One or two layers is one thing, but with all the listed clothing and then something like the picture on top, you’re going to build up humidity near your body you can’t get rid of, and you’ll become even colder. Next, a sleeping bag basically creates a warm pocket of air around you. The insulation in the bag helps create and maintain this pocket. The more compressed this insulation, the worse it performs. With layering clothing, you compress the insulation, making it less effective. On top of that, insulation is minimal if not nonexistent at the seams. Some puffy jackets and “extreme temp” clothing gets around this by minimizing seams but there’s almost always a few somewhere, which means no air pockets and no warmth. If I could recommend the best case scenario for you, it would be this: find a sleeping bag you can tolerate rated to a temp appropriate for your conditions, 15F at a minimum, best scenario a 0F. Dress in only your smartwool layers, and make sure you have a good pad/sleep set up underneath you. Sources: avid outdoorsmen, backpacker in sub 20 degree temps, and former REI employee who specialized in camping gear.

Reddit Iconfuckquasi69
12 months ago

A Big Agnes sleeping bag with down that fit me correctly. I was iffy on the price at first, but it turns out I had basically used ill fitting, non insulated sleeping bags for years of wilderness camping. Getting a good nights sleep anywhere, especially away from home, makes a huge difference.

Reddit IconJawwwwwsh
8 months ago

Just wanna say I respect the lack of overpriced fancy gear and I respect making it work for as long as you did! As much as I am “anti gear, pro getting out there”, a lightweight Big Agnes sleeping bag will roll up to about 1/8th the size of a rolled up Coleman. Mine has lasted me for 7 seasons so far no problems

Reddit IconMentalfloss1

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