From as early as I can remember, I've been a terrible sleeper.
I've always put off going to bed (a tendency I now know as revenge bedtime procrastination), and once I try to go to sleep, all the thoughts come flooding in.
How long has it been since you've done your tax?
Why are you so profoundly embarrassing?
Remember that one time you got a blood test and you were low in... something? Probably time to follow that up.
I then go through phases where I wake up throughout the night. Never early in the morning, at a time where it might be appropriate to start the day and pretend to just be a smug early riser.
Oh no.
I'm talking about 2am. Waking from a nightmare. And spending hours being irrationally terrified of snakes in my inner-city bedroom.