sleepless night gone... for good?

after trying out the method for 3 days, PH seems to be able to settle down to sleep faster every night.. he din really fuss much n is able to fall asleep without me patting him... BUT, these few days, he has been sleeping in air con room with us due to seventh mth burning.... so, not sure if it's bcoz he loves our bed, or bcoz the method is gd... hopefully effect is the same when he's back in his own room...