Does anyone else need 8+ hours of sleep?

It wasn't until medical school that I realized that if I didn't sleep 8 hours, I'm pretty unwell. My hunger cues are off and I tend to eat a lot more, I don't think as well, I'm tired all day, and my mental health is worse. Throughout med school I've prioritized sleep and have been able to sleep 8 hours (even during surgery rotation, would just knock out at 8:30 PM). However, I've noticed that this means I've had to make a lot of sacrifices: less time for social activity, hobbies, and to dilly dally. When I don't have anything to do for the day, I generally sleep 9-10 hours.

I'm scared AF for residency...how will I survive?? Will my body adapt?? How do I balance sleep with working and other aspects of my life?