For me I’ve done plenty of shifts where I got paged, slept or didn’t sleep and then worked a full day.
But at this point, if I go back to sleep, I won’t set an alarm, because I see no value in going to work like a zombie. If I end up at work but can’t focus because I was upnall night with he pager, I’ll just hit my couple meetings and call it. No point in sitting around pretending to work.