Night shift - week 1 day 2

After the first night, I slept 5 hours from 8-1. I woke up on my own, then had a regular afternoon of biking, making dinner, etc. I rode my bike to work (took less than a half an hour from out the door to sitting down in report. Night two was a little more exhausting. By 4 or 5 I was at probably a 6/10. I slept from 8:00 til 1:30 then woke up from a deep sleep by my alarm. Now, at 6 pm, I'm still at about a 7/10. I'm loopy, messing up words, and generally out of it. Will sleep a full night hopefully.