Does anyone else sleep way more than the average person?

I feel like the 8 hours per day thing does not apply to me at all. My sleep habits are not the best, but even when I get good amounts of sleep, I still tire out faster than most other people (unless I’m on my meds). I feel like I’m good for like 4-5 hours, then I need to take a nap, then I’m good for another 4-5 hours. I’m only 24 btw. Honestly, the best thing about Vyvanse to me is that it evens out my sleep schedule. No more mid day crash. I know a lot of people have problems sleeping because of stimulant meds, but I often sleep through the first couple hours of a Vyvanse and wake up refreshed. Same with stuff with smaller amounts of caffeine like coffee.