I have a month-old baby so… pretty sporadically, I guess? Current system is try and do shifts of a sort - Mrs HYG goes to bed about 11ish, I stay up till 1am and give a bottle feed if needed, I go to bed at 1am and Mrs HYG takes over (baby never seems to sleep properly until at least 2am at night), then brings her into the bedroom when she’s asleep, then we’ll try and sleep through while she wakes to feed and I do’ll nappy changes. I can get up at 8am and get to work on time, so can get six or so hours… which is doable. Could be worse. Has been worse some nights. No idea how long it will take for a proper pattern to form.