For most of my life as a musician I’ve been up late. My dad is a musician as well and when I was a kid I would stay up late and wait for him to get home from the gig.
As I got older I usually had gigs at least a couple of nights every week and I would often get home between 2-4am. I do like having a “day time”, but for some reason, I always end up staying up late.
If I have to get up early for something I will usually plan ahead for a few days and slowly adjust my schedule so that I don’t end up on no sleep.