Sleeping

It seems like I'm just exhausted all day long and can take a 3 hour nap at the drop of a hat. BUT for some unknown reason, I wake up every night at 2am and stay awake until 3am. Of course awake means get up and pee which means turning on the bathroom light...but honestly, awake for an hour? Completely unnecessary! Well then last several nights I have woken up STARVING at 2am. Some might say, eat before you lay down so that doesn't happen--um, I did, lots of food before bed--and yet I still wake up and need a granola bar or a fruit cup or something. How annoying!