I'm sort of confused. Do you use your bedroom as part of the dayhome?

I feel that a parent should be able to walk into any space used for the dayhome. That's why I love having very clear separate boundaries for my home and my dayhome. My entire upstairs is off-limits to daycare kids, daycare parents, and the agency I am with. My entire basement is used for the dayhome and my daycare parents are more than welcome to come into the basement if they so wish.

If you are uncomfortable with her walking into your bedroom (and any other part of your house), you should let her know. More than likely, she'll respect your boundaries.