How can people sleep for over 8 hours?

I’ll be 26 this month and I get like seven hours a sleep a day or even 7 in a half. Sometimes eight hours.

One of my peers stayed up so late until about 3am he told me and he didn’t get up until 1pm. That’s 10 hours! I don’t know how he does it. He said it happens sometimes. He works but he works evenings so I guess it was okay. He’s lucky his ass got up on time today for work. He usually works from 3pm to 11pm.

How can people sleep for over 8 hours?
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