need a bedtime

I need to impose a bed time for myself. Last night my husband and I got sucked into watching the next season of Dexter that we received from Netflix. So, our bedtime was somewhere around 12:30am. Then, the wake up call around 6 came too early and I've been dragging all day. My coffee addiction did help, but honestly... I'm not cut out for the late nights :) I know that makes me totally boring, but I function much better when I'm well rested.