i have never had issues with my phone's battery while playing this and it's relatively old so i have no idea what other people are complaining about but also after so long waiting for it, i found it a little underwhelming in terms of visuals and features? particularly the music you can put on while you're sleeping, it's just a shitty loop that eventually turns off after ~20 minutes. i feel like it could easily be more relaxing when you have it open

i would recommend getting and playing it with some friends because that's the biggest reason it appeals to me; my boyfriend and i have each other added on pokemon sleep which makes me more than a little happy