Yes, you can be a semi-vampire.
I think you must do better than I do on very little sleep. My problem seems to be that I either need a lot of sleep, or I end up with terrible insomnia.
I would love only to need 6 hours of sleep a night. Then I would have more time for things like painting or hobbies-- but as it is, I have a set of unopened paints in my studio, and I think about them when I take naps.