Whose idea?

Going over our "parts fun" for the day,
Thing One: My part fun was taking a nap!
Me (surprised): It was? Why?
Thing One: That's where I got the idea that I could beat everybody (done with supper).
Me: So, you were lying in bed and you thought you could beat everyone done with supper?
Thing One: No. The bed had the idea, and it came into my head during naptime.