I wish GSDs are notoriously long winded whelpers one of mine took 36 hours to have 8 puppies with 4 hours plus between puppies she slept I couldn't I am so glad I don't breed puppies anymore
I think I have been lucky, two of the three litters I have bred have arrived midday :) but then I didn't get any sleep the first few nights anyway because I like to sleep in the same room and wake up for every feed.
Myth, although my Spanish like to start at about 2 in the morning and would much rather have them outside if they could :d Oh and for some reason my dogs usually like to have them on a bank holiday weekend. I'm not very good at timing :d