If she’s low in the night, have you tried giving her a sugary drink with a straw? We found that we could just stick a straw in our daughter’s mouth and tell her to drink and she’d suck it without even waking up properly. Saves a lot of time trying to wake her up first. Don’t know if I’d have tried injections without waking her, she was on a pump so it was easy to do corrections without disturbing her at all. I think we did find we could do a finger prick without waking her up, before we had sensors!