T.M.
Hi R.,
I have never heard of putting the entire pacifier in the mouth...although my son would put the nipple and the shield around it 1/2 way in his mouth(usually under his bottom lip) But in any case it sounds very dangerous i would stop it immediately!!!! I doubt he coud swallow it but I am sure it could defianately get stuck or lodged... and he could choke! Unfortunately you will have to find another method for him at bed time...but better to be safe then sorry... good luck!