I have worked nights for 2yrs on a busy peds transplant floor. I wouldn't say I like nights, but have learned to work with my schedule. I like to schedule 3-4 days in a row (12hrs), so I can go back to being a day person on my days off. I would recommend trying only 2 nights in a row to start. Light blocking shades (approx $35 each) made an enormous difference in my ability to sleep. As mentioned in most previous posts, make sure your phone is off. I find that when I sleep at night, I am able to fall back asleep after minor distractions. During my "day sleep" any distraction will keep me up the rest of the day. Even if you find that nights is not your preferred schedule, I think it's doable for at least a couple of yrs.