I just figure that if I go to bed early, I'll be less likely to eat in front of the teevee.
Maybe that's part of it - I know that 'night eating' is a problem for LOTS of people. I don't want to use the word 'struggle' but I do have to control my urges to snack after work - the way I do it is to stay busy, eat during the day (in my obese days, I would eat pretty much nada during the day, and then after work until bedtime that was my time to 'tie on the feed bag') at regular intervals, and go to bed early (generally before 9 pm).
Of course, since I'm generally awake by 4 am, I'm still shorting myself an hour's worth of sleep, but 8 pm is just WAY too early for this chick to hit the sheets - especially if I have a 5:30 pm riding lesson and a 7 pm Pilates class that night!