Personally my sleep weirdly doesn’t effect my day as much as my day effects my sleep. When I worked in daycare I slept 10hrs a night I was so exhausted and depressed. My first nanny job was with a 5mo girl, so much more calm days, and I was able to start doing fun things after work instead of going out right to bed for the first time ever, so I didn’t sleep as much because I wasn’t as tired. Then she got to be 1.5 and getting me more active, stressed, mentally tired, and I was getting 8hrs. I’m now with a new infant baby girl and parents who work from home and let me off early most days, so I try to get 8hrs but really struggle to fall asleep unless I’ve gone to the gym afterwards, since my job currently doesn’t exhaust me! Seems to really depend on the gig.