I want to sleep forever.?

i've felt like this for such a long time. but. i don even know why. i'm too much of a coward to end my life. i dont think i want to. i just want to sleep. for a really long time. i dont know what to do with myself. i cant see myself in the future. i dont know whats happened to me. i cant do anything. i cant understand anything. i feel so illiterate and stupid. and i know there are people worse off than me, wih real problems..but this is consuming me. i understand i might be depressed, but is it possible to be depressed for no reason? even if i did go and see a doctor..i wouldnt have anything to say..so how could it possibly help? i dont know why i'm asking this. just need to let it out. i want to get out of this hole, and be good at something..find a reason to go on. :'(