Bought this bag specifically because it's a queen size, and I toss and turn a good bit, and wanted the room.I also slept in this bag for a total of about 40 nights during hunting season in central Florida, in a tent, so I experienced a good range of nighttime temperatures in it.The construction and materials are decent, no issues so far, even after separating the bag and washing it, including two extra rinse cycles, there's no fraying, nothing coming apart.The bag comes apart into two halves as stated in the specifications. It's easy to do, and it's also easy to put back together. This not only allows it to become two separate sleeping bags, but also makes it possible to wash it at home as two separate loads. More about that later.I found the "sheet" to be a nice idea but I hate how it's only on one side and how it attaches, but frankly, I don't have a better way and it does work. A full wrap around removable sheet would be better in my opinion but would probably be a hassle to get it out and put it back in.It has pockets built in the bottom section at the open end, I'm assuming for pillows but they're small, and I use big boy pillows not toy size pillows, so as far as I'm concerned those are just an added construction cost that serve no useful function.They don't hurt the use of the bag, and hey, somebody will no doubt find them useful. For what I can't fathom.Even though I know better, I initially slept in it on an air mattress without anything under the sleeping bag for insulation.Don't do that.I shouldn't have.I certainly know better.It was OK until the temperature got down to under 60° but at that point an air mattress will suck your soul from your body.I ended up doing what I should have done from the beginning, and putting a fleece blanket then two army style 80/20 wool blankets, then another fleece blanket on top of those as insulation, which was perfect, even down to the upper 20s.This isn't an indication that the sleeping bag isn't good, but air mattresses absorb your body heat and you need to insulate yourself from them just as you do from the ground.The sleeping bag itself was very comfortable between 55° and 65° but I'm one who overheats, and over 65° I had to partially open the bag to get air in.Between 50° and 55° I needed a lightweight fleece style blanket on top of the sleeping bag to be warm. That said, I wasn't wearing any pajamas, or any of that. At 55°, in a bag this size, without the body heat of another person or pajamas of some type, you're probably going to be slightly chilly but not cold.Between 35° and 50° or so I needed to add a medium weight comforter to the fleece type blanket to be warm. I also decided to wear sweat pants, socks and a T-shirt on these nights. Again, just me so no extra body heat. That was a bit on the warm side to be honest. Not hot, just a little warmer than I prefer.When the temperature dropped to 35°, I had the comforter, the fleece blanket, and my "woobie" on top of the bag.Woobie is the old insulated Army poncho liner that I'll never get rid of. And when I knew the temperature was dropping to that point, I wore sweat pants, socks, and a T-shirt along with the extra layers of insulation. I was again slightly on the warm side but that beats being cold.When the temperature dropped to about 26°, I had all that, and added a lightweight army style 80/20 wool blanket like the ones on top of the air mattress on top of me.I wasn't the slightest bit cold.So that's what I experienced and how I did things using this sleeping bag, in a tent, in central Florida, for about 40 nights total.On to that whole washing thing...When washing, as with all sleeping bags, DO NOT wash a sleeping bag in a top loading machine, EVER.JustDon'tIf that's all you have, either take it to a family member or friend's house who have a LARGE front loader, or go to a Laundromat and use the large commercial front loaders.Wash it in GENTLE or DELICATE, and in COLD water.My front loader is 4.5 CF, and is just about perfect for washing one half section if this bag at a time.Or, clean your bathtub, and hand wash it in the tub.I recommend finding someone with a large front loader, because that's a pain, and without a spin cycle (DO NOT WRING IT OUT LIKE A DISHRAG!!) it's gonna take a long time to dry.Also.DO NOT dry it in a dryer.JustDon'tHang it to dry.After washing it took about two days to fully dry, hanging over a 2" PVC pipe instead of a clothesline, in shade, rather than sun to protect it from UV. It did get damp from the dew after the first day when I forgot to bring it in for the night.Overall, this is a good sleeping bag, but as is the case with all sleeping bags, the temperature they rate them at is always based on "survival level" not comfort level, and with ANY sleeping bag you should add 10° - 15° to their advertised temperature rating, and add blankets as needed. For me that's better than buying a bag with a colder rating, as then I'm too hot. Layers can always be removed.