So I was always told never to wake a sleeping baby and to let them sleep...well last night my son…

So I was always told never to wake a sleeping baby and to let them sleep...well last night my son went to sleep at 6 and I woke him up at 9 because his bedtime is usually 1030 and I didn't want him to wake up around then...so he went back to bed with no fight and never woke up...and he always wakes up in the middle of the night for a diaper change and as of right now he is still sleeping...should I be concerned?? ....should I wake him up right now?