Awwww Decker, you are one little devil aren't you sweetie.

Lori, have you tried just letting him in the room with you at night?

If that doesn't work, maybe putting some sticky tape on the knob might help or spraying it with a citrus smelling spray and on the floor in front of the door.

I've been having some sleepness nights with a certain little girl who decides she wants to go into hyper mode around 1-2 in the morning, so she gets locked in my room at night now, until she learns to settle down.