EBF Bedtime Advice please

Jess
My lo is EBF, he is a big boy 15lbs 6oz at 9 weeks. At night time we go up to the bedroom about 630-7 where he will cluster feed till 9-10. 
Are any other EBF mums having this?
How long does your lo feed for before going to sleep? How long do they sleep for?
He will feed and feed until he's completely milk drunk and then falls asleep. This seems to be the only way I can get him to sleep, he normally will sleep through till 6ish but will sometimes wake about 4 to be changed and fed then will go back to sleep.
I have a good milk supply so I know that's not the issue. 
Xx