Hiding under a bed

Hello, I have another problem and it is I have no idea how to make a player go down under the bed. I made a matinee that makes a CAMERA go down the bed but not the actual player. What I did later I made the a little cube and got actor location of it and made the player go down but the player just stays in the same position. Even If the player would go down the bed I think he would just fall through the floor.

Is there a way that I somehow can make the mechanic for under the bed?