Hyke & BykeEolus 30 F Hiking & Backpacking Sleeping Bag - 3 Season, 800FP Goose Down Sleeping Bag - Ultralight - Blue/Lime Green - 87in - Long

I purchased the long 30 degree 800 FP down bag for general hiking and backpacking. At 6'5" and 200 pounds, the bag fit me well and was comfortable. In the conditions I hike, night time temperatures rarely go below 40 degrees. I'm a cold sleeper, so I figured the 10 degree difference between the bag rating and expected temperatures would be adequate.On unpacking the bag and fluffing it up the filling seemed a bit thin. Five minutes in the dryer on the 'air (no heat)' setting puffed it up a bit, but the bag was still less lofty than I anticipated.I tested the bag on two consecutive nights on my deck. The third night I slept in a 'control,' an REI bag I purchased several years ago with 650 FP down and rated at 20 degrees. All three nights were in the low 30s, a bit lower than I wanted but a good test for the bag. I slept in a dome tent with a Klymit lightweight air mattress for each of the three nights.The first night dropped to 33 degrees. I slept in t-shirt, skivvies, and wool socks, and was decidedly chilly most of the night, waking often to shift positions. The second night, at 34 degrees, I added pajama bottoms and a balaclava for my head and neck. I slept warmly and sound all night. The third night, at 31 degrees, I slept in the control bag and was toasty warm all night. (This bag is often times too warm for summertime temperatures.)Further testing in field conditions will be required, of course, and I fully expect the bag will perform well at 40 degrees or thereabouts. It's good to know that a wool cap and long johns, which I occasionally carry, can extend the temperature rating of this bag.PROS: Compressability. This bag compresses down to almost nothing. Lightweight. The zipper. I forgot to mention the zipper! So far, knock on wood, the zipper has failed to snag. This is a tough feat on any bag, but the Hyke & Byke has accomplished what others can't.CONS: Doesn't seem like a true 30 degree bag. Maybe a 35. Anyway I slept a bit on the cold side. Others mileage may vary.Overall, a good bag which I would recommend.

Used this 30 degree bag on a trip where the overnight temps only got into the 40s. Was in a tent, on a sleeping pad and was wearing socks, long pants, shirt, long sleeve fleece top and a winter hat. Was not warm overnight. When I got home, I found that the down had shifted, leaving bare spots in the bag. Unfortunately, I was past the return period on Amazon. Contacted Hyke and Byke and they sent me a form response about how to choose a bag and with their warranty statement. Does me no good as this is a design/quality issue that would be present in any bag that they sent me. I have slept in single degree temperatures in my old synthetic 20 degree bag with no problems. "Upgraded" to this to cut weight as I get older. At best, I would say that this is a 50 degree bag. I've learned my lesson about going with a cut-rate brand to save money.

Had a chance to take our new bags into the backcountry of the Olympic National Park this past week and they performed very well. It could very well be a three season bag in many parts of the world. The bags are well made, with excellent stitching and zippers. My size twelve feet had plenty of space, as did my solid six foot frame. As spacious as it is, this down-filled beauty collapsed into a compact, light weight little cylinder. A minute to shake and fluff the bag and it kept us comfortable throughout late summer nights in the mountains. As with any bag, a silk inner sleeve or sleeping clothes are recommended to help ensure a long life. A great bag at a great price. So far, so good. I recommend this bag .

Wow. This sleeping bag is fantastic. I used it for bikepacking/camping and it compresses VERY small. I bought the large version for extra room at the bottom and I think it was worth it. I'm 5'11 and, although the medium would have worked, I like having the little extra room.This bag is light. It zips from the inside and the interior below the hood has an elastic which can be adjusted for comfort and keeping the heat from your body in without needing too much padding to compensate.The colors are fantastic. Blue/green is such a cool combination, it was hard to pick over the orange/purple. They're vibrant and I think they can be used to be seen if needed.The bag is also very soft. It's light and thin, so I'd recommend using a sleeping pad, which I believe is just universally accepted for camping, I haven't slept in it over carpet. The bag hits the mark on all advertised features and I think it was a worthy investment long as it continues to last (it feels like it will).

The Good:1- lightweight2- strong material3- great zipper.4- packs into a small size.the bad:1- Very strong down smell.2- Down moves around inside causing gaps where in and out covers touch each other with no down in between.3- Did not withstand a 43 degree night.Update regarding wet bird smell: I aired it out; didn't work. Put it out in the sun; didn't work. Washed it on gentle cycle; didn't work. Now I'm washing it on HOT steam cycle with 1/2 dish soap 1/2 strong detergent. if this doesn't help I'm digging a hole in the backyard and burying this thing.

I took this bag on a decent hike to some tarns in the cascades of Norther Washington state. Don't get me wrong - it's a high quality backpack, but, it didn't keep me warm AT ALL. Weather conditions called for a low of 40 overnight. I had an air filled pad, along with a mat under the 2 person tent. I froze my tail off all night long. I wouldn't use this again in a situation where the temperature was going to be anywhere below about 50. I'm trying to figure out if I'm going to return it for something warmer, or just put it in a box labeled "summer camping".