As late as that?
We sometimes start looking at the clock at 8 pm and ask 'are we allowed to go to bed yet'? I'm the classic early 50s menopausal woman and DPs work means that he has to do random early and late shifts so sleep is all over the place.
My bladder also wakes me up at least twice a night (or if I'm lucky once in the night and then at getting up time, so between 5 and 7 am depending on work) and I often can't get back to sleep after then.
When DP is working away, which is quite often, I get into a terrible sleep pattern because I don't put pressure on myself to appear 'normal' or be sociable so if I'm tired in the early evening, because I've been awake since 3 am, I go to bed but then wake up around midnight or so, then spend half the night awake, go back to bed if I'm lucky/have time, then sometimes don't get up until 9/10 am.
Whether it matters depends on work or if I have plans. I can WFH sometimes which means I can get away with it as long as I sign in before 9.30 but often I also have to go into the office, out to client meetings or have a trip booked, so I might need to just get up and get on with it.