Having three kids, I get this sometimes. After bedtime is usually the first real chance I have to be alone in the day, so I don’t get any “Me” time until like 9 or 10 at night, and by that point I’m so exhausted, but maybe there’s something I’ve been wanting to get to all day I just don’t want to sleep. Other times I’m so wiped out I just let sleep take over, then do the whole thing all over again the next day.