Windows 7 - Sleep mode problems

Right, Had my computer since christmas now and just wondering why exactly when my PC go's into sleep mode I cannot wake it?

Any ideas and if you need more information just ask please. I need help

I just started having this problem... while an image restore fixes it, I dont want to do it every other day!

Welcome

Go into device manager and look for any yellow warning posters of driver problems

Up date all drivers.

Type event viewer, in search and look for errors.

Using the control panel, make sure the method that you are using to wake the computer is activated ie. mouse or keyboard.

Good luck