Nighttime is for sleeping.
Reading that was like being in algebra class in the seventh grade and finally having that moment of 'Oh, I get it.' Lack of sleep isn't good for most of us, and maybe especially me. I've learned that lesson well over years of young motherhood. I need seven to eight hours every night as well as a cat nap in the afternoon to function at my best. What good are ideas in the middle of the night if you're not functioning in the middle of the day to put those ideas to good use? I began forcing myself back to sleep. When I woke up in the middle of the night, I would shut my brain down--think of absolutely nothing but sleep. I'd keep my eyes closed, lay still. If thoughts came, I'd ignore them. 'Go back to sleep. Go back to sleep. Sleep...sleep...sleep.' It took some practice, but it worked. I don't ever wake up in the middle of the night unless my kids need me or there is impending danger. At which point I grab my baseball bat and become absolutely lethal. (Lethal when there's danger, not when my kids need me.) I know lots of writers do the writing in the middle of the night thing, but I'm a huge fan of taking care of yourself. So, turn off the lights--including the light that comes from your computer--close your eyes, rest your brain, and SLEEP.