sleepless nights

i haven't been sleeping well the past two nights, probably around two to three hours max. I dont' exactly know what the reason behind this is but I know i don't really suffer from insomia. I'm not excited about anything nor am i not tired, nor am I loaded with problems so this is quite a surprise coz I usually have a good sleep every night. So what to do instead of just tossing and turning. I turn to my best friend....my laptop. I play games (sims3), i surf, i look at porn sites even (gasp!) just to get me through the night. Now the problem is I have a headache. and this comes not on a good time as I'm scheduled to travel to Baguio City tonight with my two nieces and my nephew. Im hoping the ride is smooth and I'll be able to sleep non-stop during the whole trip. Wish me luck!