Original (August 2017): The only thing i would change is having the top size be a little larger than the bottom, so that if its unzipped it could still cover you. Never seen a two person sleeping bag like that, but that would be the only thing i would alter. Works great, not for colder weather, i had another blanket over my side of the bag during the night b/c i was cold & it was in the 40s. Great summer bag.Updated (November 2020) - changing review from 4 star to 5 star: My husband and I still love this sleeping bag. We have always used it as one big sleeping bag together, but you can use them separately as two twin bags, which is convenient if you need an individual sleeping bag - then you don't have to go buy a new bag. It comes with two little camping "pillow" - we have never used them anywhere but our hammock - so they are great for that. There is a little pocket on the inside of each side of the sleeping bag so if you wanted to put something small (ie. phone) then you would know where it is when you wake up in the middle of the night & need to find something. The zippers are good quality & have held up nicely. This bag will definitely last many many years!!! Also great for tall people (I'm 5'10" & always have plenty of leg room) as there extra head room for a pillow so then you essentially have more leg room available.This is really big and heavy. That may be a drawback to some. I wouldn't backpack with it! But I dislike slippery bags, and the soft texture and comfy feel are great. Perfectly sized for two adults, but if unzipped and split into separate bags they are not at all adult sized, just long (kid sized) narrow tubes. It comes with a zip off "wrap around" head piece that would only be needed in rather extreme cold. Really well made, and somewhat unique. For two adults this is really nice and super cozy, but it's also quite heavy and bulky.ComfyBed was too big and bulky for long treks. Very heavy as well. Also didn't look like it would hold up for 2 people to sleep comfortably. Yes, I knkw its for camping but you don't have to roll to the middle.Took on 4-night camping trip this summer. Seems well made. I didn't see any loose threads, and the zipper worked flawlessly. Was plenty comfy inside the unheated cabin with light flannel jammies during our 50-55 degree nights. Amazingly light and small. Washed on gentle cycle and air dried in the sun before using as a snuggle blanket for a movie and then repacking. I didn't read washing instructions, but it held up for me for this single wash.I purchased these for our grandkids to use on the bunks in our motorhome. The bunks are smaller so these seemed to be the best fit. They are on the smaller side but our grandkids are still young so they should work. For an adult they may not be roomy enough.I wanted to love this sleeping bag, especially I was excited about the cotton lining (hate polyester lining!) and that I becomes a giant double sleeping bag when you zip two together. I was so disappointed that it wasn't as warm as it claimed to be. We took them camping with temperatures dropping to the mid to low 50s at night. The product description says "For temperature 32 °F to 41 °F (0 °C to 5 °C), Extreme temperature 5 °F (-15 °C)" so it should easily have kept us warm and comfy, but we had to put on all our clothes including hoodies and fuzzy socks, put a blanket on top, and even zip up into individual sleeping bags to keep our heat around ourselves, and still we woke up in the middle of the night freezing.Liked the overall product. Would be nicer to have a little thicker built in pillows.Very good quality and extremely comfy. General purpose sleeping bag - you'd need extra layers for camping in colder weather.外気0℃前後、車中泊で利用しました。服装はフリースセットアップで快適に過ごせました。温かい寝袋です。2人用なので、収納は少し難しいです。