WHY Wont You Go to Sleep

I always have been. My mom said she used to cry and beg me to go to sleep until the wee hours of the morning. It's the same way now, except without the tears. Even if I have to get up at 5 am, I won't go to bed until 3 or 4 (or maybe not at all). I can function with little to no sleep. That's probably not good in the long run but oh well.