The North Face  Dolomite One Sleeping Bag

This isn't the bag for everyone. Here are my pros and cons after having it for a few years, mostly weekend camps a few times a year with a couple longer trips. Pros: both sides zip from the top and bottom. This lets you fully unzip a layer if you want, or easily poke a foot out. I especially like zipping one layer on one side and the other layer on the other. This makes it a ground sheet with two blankets attached so you can pull one over if you get too chilly. It behaves and feels more like a bed and blankets- but even on a cot you won't lose your blanket at night since it's attached. You can unzip the middle layer and use it as a wrap if you are cold around camp. I like being able to leave part of it at home in the summer when it's nice out. Because the entire thing unzips, it's much easier to wash in a home washing machine since you can wash the insulation later separately, which means even the tiniest apartment washing machine can handle it. It's roomy. I need a pillow between or under my knees to sleep- it's a rectangle so there's plenty of room. Cons: it's too bulky and heavy for backpacking, even with just the outer layer. Zippers get caught on the material unless you're super careful Bottom is uninsulated - I use a thicker insulated sleeping pad but it's still noticable when rolling over that cold air is coming through and it's uninsulated. Temp ratings are a suggestion - I'm a cold ish sleeper but even with a liner and warm base layer I was uncomfortable at 26f. If you're looking for a solid comfort rating for this, with both layers I'd put it closer to 30. The cold air that seems in when you roll over makes it tough to maintain temp below that. Other reviews note the gap at the bottom center between the zippers, I haven't had concerns with it but wear pretty thick socks to sleep when camping. Other notes: there is an eyeglasses pocket in both layers but I'd prefer it closer to the center so it's up on my chest and not near the side where I'll roll onto it by accident. I stuck with keeping them elsewhere in my tent.

The temperature ratings are a little off. Yellowstone got down to 27 degrees and I was in 3 layers, insulation air mattress and was still freezing - I couldnt take it anymore and got up at 4:30am to start my day in the car. I returned it and am looking at 20 degree rated mummy bags. The zippers love to get caught on the material, there is so much zipping you'll be waking your partner and neighbors up. Its odd that they put the warmest thickest layer in the middle, so you have to choose whats going to be cold. The bottom is not insulated, as a result the warmth easily escapes (even after stuffing a scarf through it) and your feet will get cold.