Good art and animations, but gameplay is lacking.
The main change I would make is that the option to keep touching the girl when she wakes up should definitely be part of the "Total Control" upgrade and not just something that happens through normal touching. As it is, I got to maximum Affection I think before I even figured out how to take her clothes off, and it seems like it never goes down. So after about five minutes there's no challenge to progressing the game, and no point in upgrading Deep Sleep except to unlock Total Control, unless you really have a kink for sleep sex and want that to be a challenge to maintain.
Also this game's a bit buggy, and it can be especially wonky finding the interaction points.
I'm giving this a 4/5 anyway because it's pretty fappable. There's a decent variety of poses, clothing states and interactions for the very brief progression this game has, and free touching when you've got all the upgrades. The girl is well-drawn with especially good boob jiggle animations, or it might be physics simulation, I can't tell. If you have a sleep sex kink or just want some good basic sex sim and are satisfied with missionary, this'll do ya.