Anonymous wrote:I’d say what others have suggested - don’t see it in the kitchen, living room or guest room. Wait for reply.

“Oh, ok. Thanks for checking.”

If the dog was all over the house, the pet sitter was all over the house. They used a plug that was convenient.
After 2 weeks, the OP should change or wash the sheets anyway. And board the dog.

The dog was apparently happy and well cared for. The house was occupied rather than vacant. Nothing was broken or stolen. I think most of us would call that a win. I hope by now the OP has given the charger back.

I can't think of a normal reason for this.

I'd have to let her know I didn't find it in the guest room and ask where she may have left it. A forthcoming answer would likely show no guilt- that her and the pet were asexually but codependently on your bed (or it could show bizarre guest-entitlement and no self awareness).

Anonymous wrote:Gross, she used your bed.

Why is that gross?

Anonymous wrote:“Hi xx! I found the charger plugged in next to my bed. I was surprised because I thought you were sleeping in the guest room. Was something wrong in that room? Please let me know since we often have guests! And let me know when you want to pick it up.”

I love this answer.

OP. You are a royal PITA.

Change your sheets, but it’s not a big deal. Your bed is probably more comfortable than the guest bed.