How much would you charge for taking care of a dog (would stay in my house) per night?

 Time between Christmas and new years. The dog is 24/7 watched through cameras. Alone she would be 3 hours per day. Not crated. I've seen a lot of kennels which charge between 40-65 per night, but the dog would be in a crate all day (big crate). Open space would go up to 80 dollars per night. We have 1 dog ourselves and he loves company. We would treat the dog like our own. I have a lot of experience with dogs since I'm a foster mom for a shelter near by. What would you charge