Fed baby is a happy baby. You want the baby to always have food coma during the newborn phase. He was able to sleep better and wake up once at night. At the moment he’s hitting 7.5 hours at a time.
When he woke up in the middle of the night, I would change him then feed.
Babies make a lot of noise when they are sleeping, you can wait a few minutes after they start crying to pick them up. They could be “active” sleeping.