How do I make sure I’m able to sleep a full 8 hours?

My dad doesn’t believe me when I tell him that I got up an hour or two ago. I’m usually asleep by 11pm and I get up around 4am. My dad checked on me just 15 minutes ago while our dog was in the room with me. He asked me about being up late, I told him what I said here, and he doubted me by saying, “Are you sure you just got up or have you been up all night?”

I literally asked him how I can sleep longer and avoid waking up at such early times. He half-answered my question, said he doesn’t know how to deal with that, and went back to sleep.

He gets irritated when I don’t take our dog out to go potty outside every 30 minutes to an hour even when I am up so late and the dog happens to be sleeping or just needs water.

I actually no longer believe in getting 8 hours of sleep or sleeping at the right time. There are literally TV shows airing all the time, even during “sleep hours.” Going by this logic, it should be illegal for a show to air at 3am, or someone to keep working till 5am.

People work during those “sleep hours,” and even do TikTok livestreaming.

My question is, does society really need sleep? Or is it just a scare tactic to prevent people from socializing and communicating with people from different parts of the world?

My dad also believes you really only need 6 hours of sleep. Well, I slept for 5 tonight.

Updates
7 mo
My dad knows I use AI to seek advice, but he doesn’t realize that I’m actually using most of my phone to use ChatGPT these days, especially all night because I’m thinking about a girl and I am curious to know how much she likes me.
How do I make sure I’m able to sleep a full 8 hours?
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