Another of Monica’s extreme owls here. Like others have mentioned, I get almost exactly 8 hours sleep, but find myself most awake about 11 pm, when I find myself feeling like starting some task. Will now often lie awake enjoying being warm and cosy and “meditating” after waking, often till 10-11am or later, and I really struggle if I have to get up by 8am for some reason, as I just don’t get off to sleep properly if I go to bed before midnight. Whereas at 2-3am, I sleep when my head touches the pillow till I wake 7-8 hours later. I get really annoyed when people I am not expecting to phone ring between 8 and 9 am and wake me from a deep sleep, I wouldn’t dream of ringing them at midnight and would rightly be considered rude to do so! Even when I was working, and had to be there by 8-9.30am, if I had something complicated to do, I’d try to schedule it for later in the morning or early afternoon. But I was also on call overnight and was expected to be up, dressed and functioning then!