Ystem Sleep: Hard Restart Does Nothing

So I accidentally put my computer into sleep mode yesterday (I never normally use it) and now it wont start up! The Keyboard and Mouse are both off, and if i push the power button i can hear the computer start up but both the power and working lights stay off and the screen stays black (nothing happens except I can hear the computer running). Ive tried several hard restarts from the computer and turning off all power then turning it on and nothing works! Its a new computer 4 months old and ive had no problems of this sort ever before. It cant even show me a boot screen or BSOD or anything, "coma" is the best way of describing the problem (it definitely works, i can hear it whirring but it just does nothing).