I would think that until they are school age daycare providers children should be following the same routines as the daycare. I can understand napping in their own bed though. But tv and extra snacks etc., I wouldn't allow. How old are the children?

Once they are older then it is only fair to the children that they have an escape. It is their parents career not theirs, they may just need time to decompress and get away from the younger kids. This would be more notable during the summer when they are home all day, but during the school year it wouldn't be that noticeable to the daycare children since they were away at school all day to begin with so are not really part of the group.