By +4 I meant two hours from now - four hours after the shot. We talk in + however many hours from the shot around here because that is the important information and everyone is in different time zones. No need to wake her up necessarily she might sleep through her test, Vyktor used to do that all the time
What time is it there now are you wanting to go to bed? Your other option is to skip the +4 and set the alarm for a test later in the cycle. If it’s not your bedtime yet the +4 (two hours from the last test) would be the better option as you might get to sleep through the night.
ETA - I see you posted the time and it’s quite late, perhaps you just want to have a big glass of water now and go to bed. Then you can test her when you get up to pee.