Hi hun!
I notice you have some posts in different places, so I'm going to lock this one and link it to your EASY post -- with your complete routine being detailed there, I think you'll get some more thorough answers there.
I would say though, that at 9 weeks, you really should expect a night feed, and as long as he's going as long at night as he is during the day, it's totally fine. If you feed him and he goes right back to sleep, it's not going to create any problems -- it just shows that he was hungry, you met his need, and he was able to go back to sleep because of that. Just because he can sometimes go longer with resettlings doesn't mean that he's ready to, you know?
Anyway, here's the link to the EASY post:
HELP!!!!!