Nap: Since I didn't get a chance to do a morning nap, I kept the evening nap on time. From 1800 to 1830. I did sleep during that but it was not one big chunk of sleep, it was more like several chunks of good sleep. I can't count how many chunks. But I enjoyed it and felt great afterwards.
Core sleep: Because of SL went to bed at 0115. Alarm set for 4.5 hours - 0600. But I forgot about the guitar alarm on my laptop for 0530. It did go off on time, the volume was loud and it woke me up. It took me two minutes to remember the time for today was 0600 but by then I was awake so I just stayed awake.
Energy levels: 100%
Health: Fine, no cold.