I have a Toshiba laptop and I'm not able get it to come back to “life” while in sleep mode.
I have it set for sleep after 1 hour of inactivity. When I press the power button to bring it up it never fully boots up and I have to eventually power it down and reboot.

Do you think this is a software problem or a hardware problem?

Why are you using sleep mode ?

Also what OS is installed ?
Further information would be helpful