your pom is same as my dog la
my dog loves to bark bout 5am

because by the time most of my neighbour wake up to cook breakfast
and he woke up

then nowadays i feed him dinner bout 10pm
then play with him till he's really crazy bark non stop !
then put him back bout 11.30am
he will drink water non stop
then wll fall asleep
i will accompany him till 12am

then i off the light and went upstair

with this way
he can sleep terus till 8am non stop !!

anyway.. mine is puppy lah~