I forgot how to fall asleep...

I REALLY needed to fall asleep early last night but I couldn't.  I was supposed to go on a 6-mile hiking trip, so I needed some rest, but like all the past nights, I had trouble falling asleep.  Which is something I can easily do in those uncomfortable classroom chairs but not in my homey soft bed.  >:(

I ended up lying in my bed for a good hour with my playlist for falling asleep, which had NO effect on me whatsoever, played some stupid games on my iPod, and then rolled down to my back-up sleeping spot... my floor.  My dirty dirty floor.

This strategy usually helps, but last night I laid on my stupid floor for another hour until I lost consciousness.

I can't keep living sleeping like this.  Help!  What do I do?