A few things I assume don't work if the computer sleeps. Webcam Yahoo IM program (not sure I understand why it disconnects) Downloads Etc.... I recently set it to 'Never' after being annoyed with my Yahoo IM constantly shutting down and going offline every time the computer went to sleep. Also, I was trying to use my Webcam to leave on all day to watch the dog, but because it goes to sleep and the website it uses, it wouldn't stay on. So is it ok to leave it like this? My screen goes to sleep which is fine, but I don't necessarily need or want to computer to sleep.