Relevence?

We got home late last night...Everyone was tired. I let Schatz sleep in my bedroom on the floor. She wanted to "read" her book, but she has a bad habit of getting out of bed a dozen times a night before she falls asleep. So I was laying down the law:

Mommy: You may read your book, but you are not allowed to get out of bed. Stay in your bed or Mommy is going to take away your book and you will have to go to nigh-night.

Schatz: But Mommy...(trying to think of a good reason to get out of bed)...The two Bobs are sleeping upstairs.