Charging?

Is it ok to leave my droid in to charge overnight??? Im just worried about the battery being ruined or being on for too long, like my droid normally doesnt die in one day so when i go to bed, its yellow i wake up and its charged and so on so it really never dies, is this ok???

 

Modern batteries cant be overcharged, and dont suffer from memory issues from repeated partial charges. Dont worry about it.