It seems I have been over-anxious
! I think I will wait until he is a year old.... I brought him upstairs and put him down today for a minute and he almost seemed overwhelmed !! He sleeps with me upstairs, but I carry him and the bed is so high he can't jump off....
I teach school so maybe I will wait until next summer to do "upstairs training" - it will be his summer treat ! Thanks ya'll for your feedback !!