I'm 35 years old and I go to bed around 10:00 PM to 11:00 PM and get up in the morning around 6:30 AM to 7:00 AM.
That gives me around 8 to 9 hours of sleep which is enough for me and I work from home so if I need to I can take a nap during the day.
I don't have a certain time I need to be up in the morning so it doesn't matter when I go to bed and when I wake up.
I just wake up when I wake up and then have my coffee and get to work blogging.
I write part of a blog post and then get up and take a break and then an hour or so later I come back and finish writing the blog post.
Sometimes it can take me 2 to 5 days to write a good long detailed blog post that will rank in google and other search engines.
That's what you want when blogging are long detailed blog posts.
So while it may take me 2 to 5 days to complete a blog post it's well worth it because those blog posts will rank in search engines for many years and bring in money for years to come.