I tend to be more productive and I code until I pretty much can no longer concentrate and my mind just lets me know I need to sleep. It's a weird schedule, but

I tend to be more productive and I code until I pretty much can no longer concentrate and my mind just lets me know I need to sleep. It's a weird schedule, but if I don't do it, I'm just lying there, awake in bed, trying to get to sleep for 2-3 hours. I figure I'd take that 2-3 hours and code instead.