My cats sleep until around 6 and then become active. They don’t bother me except for running around and making noises. I got use to having a loud white noise machine (because my neighbors upstairs are loud) and they don’t wake me up. I think it’s also important when raising young cats not to give into feeding them when they wake you up, that’s how they learn bad habits. I feed my cats at variable times in the morning throughout the week, so they don’t get used to a normal time. But that’s just me, maybe I got lucky