Wow, wow, wow, I like everything about this! Beautiful pixel art and fun very horny gameplay. Everything you do has some sort of animated response and makes a sound. Even the menus feel polished. Love the character designs a lot, they just have so much charm and personality! As a minor point, the particle effects can probably also be done as pixel art to match the style.
The first couple of times I played I immediately went for the dream bubble, it just feels like something you should be able to interact with. I think it might make for a nice bonus pleasure point that occasionally appears for you to manipulate.
I think there should be a little more incentive to take care of the angels. Some sort of indication of which direction they appear from would make the player waste less time chasing them down and perhaps swatting one might restore some sleep? I did a lot better after I started ignored them until there was a whole bunch or they were very close.
This is the sort of game that gives me all sorts of ideas for my own future projects. It's short but very fun and is definitely something that I would play more of if it's updated. Absolutely love this game!