That's not wildly outside normal ranges. The average recommended sleep for an adult is 7-9 hours, with up to an hour variance outside that still being within healthy ranges for some people.
No naps during the day. I just let go of my notions about how much sleep was enough, and started going to bed when I was tired and getting out of bed when I wake up. I do not use an alarm to wake up, and I do not get tired during the day, so I think I've settled on an adequate sleep schedule for my body.