Laptop won't come out of sleep/hibernate

[ajml]

This isn't my computer so I don't have a ton of info. Basically my friend has a Gateway laptop (probably the problem) that is pretty new. If the lid gets closed and the laptop goes im guessing into hibernate when you go to turn it back in with the power button the lights come on but the computer display does not. If you do a hard shutdown/reboot it comes back. Any ideas?