Night feedings for a 6 week old

My son is 6.4 weeks old. He is exclusively breastfeeding. He eats at 6:30 gets a quick bath and bed time story and is asleep by 7pm every night.

I’ve been dream feeding him every two hours throughout the nights. But the last two nights it’s impossible to dream feed him. He is just not interested and tightens his lips. He refuses to wake up.

When is it okay to just let him sleep, and wait for him to cue that he’s hungry?

He was born 8.1 lbs, and now is 9.15 lbs at 6.4 weeks.

Please help because I’m so conflicted on wether I should let him sleep, or un-swaddle him and force him to eat?