A kid born never dreaming. He couldn't even if he wanted to, his quirk prevented it. Deprevation- the more the user is deprived of something they want the more powerful they get. The biggest drawback is that izuku can only sleep when he is with someone who he loves. This wasn't too difficult when he was a kid since he had his mum but after she passed away he would go weeks without sleep because he never told his adoptive parents about the drawback. After a certain event Izuku was in a position where it was impossible for him to sleep, until a blue haired cutie comes to his rescue.