Yup we had the same issue with one of ours, for some reason he loved to jump out of his cage at night to explore. My wife and I would be asleep and all of a sudden we would hear a noise, after the second night of this, I went to turn on the lights. He was on my pile of work clothes jumping on and off our bed, when we caught him, he ran into his cage as if nothing had happened. It was the funniest thing, I can not believe how sneaky these little guys are.