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HyperDown Sleeping Bag Reviews

Dimitri K.

Apr 26, 2026

5/5

Absolutely love this sleeping bag.

Absolutely love this sleeping bag. It was extremely warm during a chilly late spring evening in eastern Montana. Love the ability to keep the bag on but have zippers for feet and arms. Game changer for those late night bathroom trips. Light as a feather and filled with top quality feathers. Durable and really noticeable quality build.

Verified Buyer

Height: 5'9'' - 5'11'' · Weight: 131 lbs - 160lbs

Fit: True to size

Color: Deep Lichen · Size: Reg

Cody h.

Mar 31, 2026

5/5

Good So Far

Used this bag two nights camping out for WV spring bear training season. Nothing crazy good but one night it go into the 20s and bag let me very warm. Packs down much nicer and lighter then my old Kelty bag. Real test will be in a month when I head out to MT for a spring bear hunt. I’m 6 2” and bag is plenty long enough.

Verified Buyer

Height: 6' - 6'2'' · Weight: 161 lbs - 190lbs

Fit: True to size

Color: Deep Lichen · Size: Long

Chris H.

Mar 24, 2026

5/5

HyperDown Sleeping Bag

Lightweight. Fits me fine. Haven't tried it outside in the cold yet.

Verified Buyer

Height: 5'9'' - 5'11'' · Weight: 161 lbs - 190lbs

Fit: True to size

Color: Deep Lichen · Size: Long

Ngoc N.

Mar 20, 2026

5/5

Solid bag, better than expected

Took it out in <15° on a few occasions and it kept me warm. Good to know it can still perform in wet conditions. Good articulated fit - not too bulky and not too constricting in the body. Zippers don't catch. I used the arm holes and foldable bottom, like an insulation suit, more than I thought I would. Interior fabric is comfortable.

Verified Buyer

Height: 5'6'' - 5'8'' · Weight: 191 lbs - 220lbs

Fit: True to size

Color: Deep Lichen · Size: Reg

Josh E.

Mar 18, 2026

5/5

Phenomenal bag

So much to love about this design! The fact that I can zip out the arms and feet and use around camp or glassing for elk is brilliant. Also love the chest/phone pocket to keep the phone handy and warm. Super warm and light to boot!

Verified Buyer

Height: 5'9'' - 5'11'' · Weight: 161 lbs - 190lbs

Fit: True to size

Tim C.

Mar 18, 2026

5/5

sleeping bag

super light weight, warm . great pack bag

Verified Buyer

Height: 5'9'' - 5'11'' · Weight: 191 lbs - 220lbs

Fit: True to size

Color: Deep Lichen · Size: Reg

Cody D.

Mar 18, 2026

5/5

Exactly what I needed

I had been shopping for sackable yet functional bags for a while before my Montana back country elk hunt. This bag is perfect in every way.

Verified Buyer

Height: 5'9'' - 5'11'' · Weight: 161 lbs - 190lbs

Fit: True to size

Color: Deep Lichen · Size: Reg

Adam S.

Mar 18, 2026

5/5

Cold weather king!

Unbelievably lightweight and comfortable! Kept me warm in appalachians in December. Great for any backpacking trip.

Verified Buyer

Height: 5'6'' - 5'8'' · Weight: 131 lbs - 160lbs

Fit: True to size

Color: Deep Lichen · Size: Long

Jaxson

Dec 4, 2025

5/5

Warm

I love it so much, it keeps me nice and warm in the mountains

AnonymousUser

Height: 5'3'' - 5'5'' · Weight: 251 lbs - 280lbs

Fit: True to size

Paul J.

Nov 13, 2025

5/5

Great bag

Extremely impressed with the features and weight of the sleeping bag. Definitely recommend

Verified Buyer

Military & Veterans

Height: 5'9'' - 5'11'' · Weight: 131 lbs - 160lbs

Fit: True to size

Chris M.

Oct 14, 2025

5/5

Good Product

Very well thought out bag. Zipper doesn’t snag near as bad as my western mountaineering bag I’ve had for years. The only thing that I would change is it’s really tight around the chest if you sleep with your arms out your chest. I’m also a pretty large guy with broad shoulders so I wouldn’t call it a design flaw.

Verified Buyer

Pro

Height: 6' - 6'2'' · Weight: 221 lbs - 250lbs

Fit: Runs small

Peter J.

Oct 12, 2025

5/5

When I seen that Sitka

When I seen that Sitka FINALLY made the bag I’ve been waiting on, I sold my other brands and got it! Beast bag in the industry!!

Verified Buyer

Pro

Height: 5'9'' - 5'11'' · Weight: 191 lbs - 220lbs

Fit: True to size

Robert P.

Oct 5, 2025

5/5

Warm and Functional

Used this for mule deer and elk camps in Colorado it did not disappoint. It makes getting up in the morning or heading to the bathroom at night much easier.

Verified Buyer

Pro

Height: 5'9'' - 5'11'' · Weight: 161 lbs - 190lbs

Fit: True to size

Vincent V.

Aug 9, 2025

5/5

Nice product

this is a nice product!

Verified Buyer

Pro

Height: 5'9'' - 5'11'' · Weight: 161 lbs - 190lbs

Fit: True to size

Dan M.

Jul 31, 2025

5/5

Such a great sleeping bag!!!

Such a great sleeping bag!!! I use it for work (supt of a hotshot crew) and hunting and the bag does the job. Keeps me warm, lightweight, packs easy and you gotta love the arm holes!

Verified Buyer

Employee

Height: 5'9'' - 5'11'' · Weight: 191 lbs - 220lbs

Fit: True to size

GBVladimir K.

Feb 12, 2025

5/5

Great sleeping bag and great service!

Most verisatle and quality sleeeping bag for hunting. Absolutely recommended!

Verified Buyer

Height: 6' - 6'2'' · Weight: 191 lbs - 220lbs

Fit: True to size

Israel W.

Feb 9, 2025

4/5

Product seems very high quality.

Product seems very high quality. It’s very warm, all the features are great. Love the arm holes and ability to wear it, makes night time bathroom trips so much better. Only reason for 4 stars is the misleading temperature marketing. Marketed on website as “comfort rating 15” which if you know sleeping bags well at all, the comfort rating is just that… you’re comfortable at 15. The pictures blur out the true temp rating so when you get the bag and you’ve just spent a small fortune on it, planning a very cold trip and alarming find the bad is actually a lower limit rating of 15… that’s a major difference. Technically, that puts the comfort rating up between 30-40 degrees. If it’s a comfort rating, why in the world would you advertise it as that and then send out a product that says something totally different?? Hope it’s as warm as I need or else I just dropped a ton of money on a bag that won’t have a use.

Verified Buyer

Military & Veterans

Height: 6' - 6'2'' · Weight: 191 lbs - 220lbs

Fit: True to size

Ian M.

Nov 23, 2024

5/5

Great fitting bag and works

Great fitting bag and works really well. Love the oversized arm slots. Easy to get in and out of and makes making morning coffee in camp that much more enjoyable. Highly recommend this bag!

Verified Buyer

Pro

Height: 5'6'' - 5'8'' · Weight: 161 lbs - 190lbs

Fit: True to size

Ryan D.

Nov 18, 2024

5/5

Functional and appropriately degree rated

I had a chance to use this bag on a high-country hunt in early November. There was no heat source in the tent used on this hunt. I stayed completely warm in nighttime temperatures for the first few nights, which got down to about 20F, with a wool base layer on and wool hiking socks. The third and fourth nights, it got down to about 10F (a few degrees below the middle rating on the bag) and I had to add a few layers and put my thin down jacket across my chest in the bag; I stayed very warm with those extra layers. Regardless of the outside temperature, my feet stayed toasty with a pair of wool socks on. The functionality of the arm zips was awesome, and the hood was very warm. Overall, a very warm, well-constructed, and comfortable bag

Verified Buyer

Height: 6' - 6'2'' · Weight: 191 lbs - 220lbs

Fit: True to size

Neil M.

Nov 18, 2024

5/5

Bag

Perfect fit and warm. Like the zipper option

Verified Buyer

Military & Veterans

Height: 5'9'' - 5'11'' · Weight: 161 lbs - 190lbs

Fit: True to size

Lucas S.

Nov 1, 2024

5/5

Hyper down sleeping bag

Absolutely best sleeping bag I’ve used, extremely warm and isn’t to constricting to lay in like most down bags I’ve used. The arm holes are definitely a plus for sitting outside. It would be great if it came with a stuff sack which is my only non positive feedback but I got a waterproof stuff/compression sack and it stores away very neatly. Definitely recommend!

Verified Buyer

Pro

Height: 6' - 6'2'' · Weight: 161 lbs - 190lbs

Fit: True to size

Graham K.

Oct 19, 2024

5/5

Hyperdown Sleeping Bag

Excellent Product. This bag delivers as promised. Opened our bags for the first time on a 9 day sheep/moose hunt in the Canadian Rockies. Nights went to -10 C (14F) and the bags kept us warm. They are lightweight, very packable, and are the most comfortable bags I have used in the backcountry. I love the arm zips and ability to get up and light the wood stove without getting out of my sleeping bag.

Verified Buyer

Height: 6' - 6'2'' · Weight: 161 lbs - 190lbs

Fit: True to size

Brian F.

Sep 28, 2024

5/5

Great Sleeping Bag!

Excellent backcountry sleeping bag choice! Hunted in Colorado last week and we had morning temperatures in the low 30s most of the week and two days of steady rain, and the Hyperdown didn’t fail. I slept very comfortably (almost too warm) in just with T-Shirt and light weight long John bottoms. The bag handled the moisture great. Love the technical features and hooded design, especially when nature calls at 2AM! Only minor issue is the one arm zipper snagged the material and made a small tear, but I’m working with Sitka warranty/repair to address that. You won’t regret purchasing this bag…best one on the market as far as I’m concerned. Good luck on the woods!

Height: 5'9'' - 5'11'' · Weight: 131 lbs - 160lbs

Fit: True to size

jeff M.

Sep 26, 2024

5/5

Wonderful pants, fit tight

complete piece of crap, would not recomend. this thing is like a potato sack with arm holes. why would someone pay 700 bucks for this thing, it looks and feels rediculous!

AnonymousUser

Height: 7' & above · Weight: Above 340 lbs

Fit: Runs big

Alex G.

Sep 18, 2024

5/5

I knew I’d like it,

I knew I’d like it, but didn’t realize how much I’d like it. Only tasted a few times in preparation so far for the upcoming hunting seasons and all I can say is it’s WARM. Exterior seems to have a good water reactance to any moisture that could hit it. The arm slots are a great idea and are easy to access. I am 5’11” with a muscular build and broad shoulders and do not feel confined as that was my biggest worry compared to my other bags. Fully zipped it is close to your face but understandably if it’s that cold. Packs down well for backpacking and doesn’t weigh much. Highly recommend.

Verified Buyer

Military & Veterans

Height: 5'9'' - 5'11'' · Weight: 221 lbs - 250lbs

Fit: True to size

James F.

Aug 7, 2024

5/5

Warm and light!

I hunt in the mountains of the northeast. Weather can range wildly from day to day. I have use the 30 degree bag from Sitka since it came out and love it. I purchased the down bag for the colder nights. I have yet to have a real cold night to test this bag out but you can feel the warmth within seconds of being in the bag. The fit is the same as to 30 degree bag. As always the quality of the material and manufacturing is top notch. I am also amazed at how light and packable the bag is. It is noticeably lighter than the 30 degree bag and packs into a smaller stuff sack. Bottom line is I would recommend.

Verified Buyer

Military & Veterans

Height: 6' - 6'2'' · Weight: 221 lbs - 250lbs

Fit: True to size

Adam

Jun 26, 2024

5/5

Unbeatable for its warmth to weight ratio and packability

When it comes to sleeping bags, down is unbeatable for its warmth to weight ratio and packability. The HyperDown 15 Sleeping Bag has quickly become my first choice for mid to late season backpack hunts. But this is more than a traditional sleeping bag — the zippered arm holes and two-way center zip adds a ton of functionality around camp. I can cook, glass or organize gear without having to fully emerge from the warmth of this bag.

Fit: True to size

Steven

Jun 26, 2024

5/5

Super compressible, lightweight and very warm.

With the zippered arm holes and ability to hook the bottom of the bag up, you can literally wear this bag and walk around! Pretty great for those especially cold days on the mountain as you're glassing for critters. It’s also great because you can wear it around camp, and even take a leak with it on! Super compressible, lightweight and very warm.

Fit: True to size