Trey explains it all

Here is how Trey explained to me the phenomenon of going to sleep in Mom's bed and waking up in his bed:

"And I go to sleep in Mommy bed and then it's Trey bed, and you go to sleep Mommy and you can't see me. You say 'where's Trey?' and I'm in my bed. But first it was Mommy bed and then Trey's bed and then I just wake up."

Got it?