Back in my "Windows" times, I was a fan of Foobar2000 music player. One of my favourite plug-ins was "Alarm", which could turn user's computer on during "suspend" state. So, I could switch my laptop to "sleep" mode, and be awaken in the morning by music from Foobar's playlist :) Is it possible to reproduce a similar trick in Linux? It depends on your hardware. Let's give it a try!