I bought this sleeping bag to reduce weight to my backpacking load. My original sleeping bag is a 0F Teton bag that I weighed in at 5.2lbs. This 0F sleeping bag weighed in at 2.6lb which is super light for its temp rating. At first glance my thoughts were "it's so lightweight but is it really worth spending $200 when I already have a perfectly good sleeping bag?" And then I took the bag out of its stuffsack and holllly shit it feels so freaking amazing. Its like a cloud! The feel of the material is insanely soft, the light blue color is pleasing to the eyes, and laying inside of it feels like a dream. So given that + the lightweight, YEAH it was worth it. Now I'm going to use my Teton bag for car camping and this bag for backpacking. Stoked!!! I have 2 minor cons: 1)the stuff sack is a bitch to stuff the bag into. Rolling the bag up like you would a traditional synthetic sleeping bag is not the way, the best way is to litteraly stuff it inside the sack using your fist to push the air out as you stuff. 2)the material of the stuffsack is the same as the sleeping bag. If your like me and usually tie your bag to the outside of your backpack then you would have to worry about it ripping, although it is made of rip-stop, but still. I have another ripstop bag that I use to double up the fabric. So now it weighs 3lbs with that which is still crazy light for 0F.

I go backpacking allover the US and never really paid much attention to the weight of my gear. This is because I was new to backpacking at the time I purchased it all plus money was a factor. Even as gear broke over the years I always managed to repair it. But I've been on a gear-buying-binge lately to upgrade & reduce weight because I backpack enough now that I don't mind spending some money on my favorite hobby. I definitely don't buy the expensive shit though, but things in the affordable/mid to high quality range. This sleeping bag is definitely the best bang for your dollar. Just get it.

& Happy trails!

For context, I own a competitor's 0-degree related sleeping bag that I had used to hike in the Nepal Himalayas, but that bag is still at a friend's in Kathmandu and was much more expensive. In planning for a May backpacking trip to the North Woods in Minnesota, Wisconsin, and Michigan, I needed an ultra lightweight tent and sleeping bag that would serve me well for unpredictable and potentially cold weather. I chose this sleeping bag from Hyke and Byke.

While there were cheaper bags on Amazon that were 0-degree rated, this one caught my attention because it's filled with goose down and its attractive styling. I liked the bright blue and lime green colors, and the mummy fit. And, I liked that it is made in the USA, and that the company is socially conscious, providing micro loans to persons in poverty. I also liked that the price point was under $200 (April, 2023).

Back now from the backpacking trip, I can report that the bag served me well "” but not perfectly. It is indeed lightweight which is an important consideration when backpacking. The fit was good though my personal preference would be for a bag that's a bit less snug. Being 5'4", I ordered the short "” which is both shorter and less wide than the regular. (I compared with my husband's regular and liked his roominess more). The bigger issue, however, was that I was cold, especially near my lower back, when the outside temperature dipped to about 30 degrees. (This was within our tent, with the bag only; no bag liner). I would not rely upon the bag for sufficient warmth at zero degrees.

A good ultra lightweight bag for the price

0°F bags are comfortable to somewhere above that . Maybe 15-20°F above. Right now it's 24°F and I'm cold. Not freezing, but uncomfortable and unable to sleep. The lack of a true mummy top makes keeping my head warm a problem (it's fabric-only over the top). At 24°, I really should be comfy in wool jammies, socks and beanie, not cold with every piece of clothing in my sack plus 2 jackets. I might not survive a true 0°F night in this bag. However, for a down bag, it's a great price and folds small, about 1/3 less than a 650 fill. Just remember a liner if you expect frost or colder.

Still, you can't beat the weight or the size without going up to 850-fill products in the $600-800 range. Hyke has a video on how to clean. Do not dry clean down! Wash by hand and feet in a basin or bathtub with just a tiny bit of organic soap. Hang dry (or better yet, tumble dry low/air only with tennis balls to maintain down fluffiness).

It is high-wicking, so sweat wont build up. It's a little narrow for people with broad shoulders, but you can still sleep on your side.

Update: at 30° F (separate trip), I went to sleep in merino wool underwear and that's it. The inner material reflects body heat, and I was actually too warm until I unzipped a few inches. Still, I would bring a bag liner for anything below freezing. However, I'm changing to 5 stars as the lack of warmth at the lower temperature may have been due to my ignorance. It does not come with a mesh bag for storage. Do not store long term in stuff sack! Get a mesh laundry bag at your nearest discount store for $5.

I studied sleeping bags for literally months before ordering this one. I was torn between versions that were $500-$700 for the lightest and warmest, but I simply couldn't find an excuse to warrant spending that much on a sleeping bag to shave a few ounces. Down to the wire before my camping trip in the autumn mountains this past weekend, I finally decided to order this and a quilt style to see which I liked better. This bag won hands down and I am returning the quilt.

This bag packs small for the temperature rating and is relatively lightweight. It fit easily in my backpack and fluffs right up when removed from the stuff sack. I got inside to test it indoors and immediately started sweating. It has plenty of room for me to move my arms and legs when fully zipped and works when side sleeping as well, although the mummy head section is annoying when side sleeping.

The best part is how warm I was at 15-20 degrees F. Sleeping bags are rated for survival - comfort level is about 20-degrees higher. I sleep cold and like warm blankets and found myself comfortable with just a base layer on in this bag. With a liner, it would be even warmer, but I don't want to backpack with that unless I really need it. I was terribly thankful for having this bag when everyone else was cold and filling their sleeping bags with hand warmers to stay warm!

The down stays where it should and the baffles inside do a great job keeping warm air in and cold air out. The zipper didn't snag even once and is quite sturdy. All said, this bag is everything advertised and I feel it was a great investment in gear.