Spending a little time in a sauna before bed has helped me with sleep for a long while, but I was wanted to try something more convenient than a home sauna, since the heating time, etc, is inconvenient before bed.I was expecting this to be maybe a glorified electric blanket, since I haven't tried something like this before, and was pleasantly surprised at how well this worked (though it's not perfect).For starters, it's very easy to "set up" - there's no more setup required than an electric blanket. Unbox it, remove it from the included carry bag, undo the cord ties, and plug it in.Overall the quality seems okay. The zippers are sturdy and move well, the stitching seems strong and solid. I can't yet comment on the quality of the actual fabric and heating element, but if it has any early failures I'll update this review. I did notice the control box seems to be really lightweight plastic - I do wonder if it would survive a couple falls from the bed to the floor, as could easily happen.Using it is easy. I laid it out on the bed, unzipped one side about half way, got in, and zipped it up from the inside. I didn't use the arm slots, instead keeping one arm out for the phone, but they seemed easy enough to use. As long as the main zipper is about halfway up (within reach), I don't think there's any difficulty getting and and out on your own.It gets surprisingly (and very) hot. It claims a maximum heat level of 167 F, both in the description and on the thermostat. I don't, to be honest, know what that could be measuring. There's very little "free air" inside a blanket, so I don't think it's reasonable to say it's surrounding you in 167 degree air. And if it were, you certainly aren't spending 30 minutes in it.Overall, though, it gets quite warm, quite quickly - so warm, in fact that I did notice a few hotspots inside that, at the highest setting, were borderline uncomfortable to stay in contact with.But, dialled back a bit, or with a towel to distribute heat, that was no longer an issue.