I've been a nurse for 8 months, 5 months of NOC. I love my floor and have adjusted well to the night shift hours. I've always been somewhat of an insomniac so sleeping in the day has been easier for me. I don't love not being able to get a lot of sun and sometimes I don't think it does wonders for my mental well being, but that's a whole different issue.
My main problem has been that I have had a lot of trouble falling asleep before 7am on my nights off. I think my circadian rhythm has completely flipped. I"ve tried Lunesta, not sleeping much the days that I'm off (get up at 2pm), but I still can't seem to fall asleep before the sun rises. That makes it difficult to get up early and do things on my off days. I'm willing to try non-pharm measures such as meditation, yoga, etc. I'd love to hear from other people.