if i were you, i would rearrange the time schedule
remind you that no matter what time they go to bed, they will not do anything in day time when there is no body at home
she can only go to bed when she finish whole day household work
all those cleasing work should be done in the day time & check again when you back home, further even those the house has been cleansed in the morning, it will become dusty again by the time when everybody back home in the evening; it could delay your time to go to work