My son is 5 months old and hes a big boy we took him to his 4 month check up last month and he weighed at that time 19lbs

he dosnt look chubby hes just big, well anyways at night he wakes up through the night maybe 4 times wanting a bottle he use to sleep through the night about 2 months ago. I just dont know what to do

i just want him to sleep through the nite. Help please