I slept pretty good last night but I feel a little tired this morning. I added slightly more than 10% to my run yesterday, and that has put additional stress on my body. My wakeup HR was 48, 1 higher than yesterday. Dr. George Sheehan, in his book Runner's Repair Manual, said it takes 48 hours to recover from a hard run. Based on that, my feeling a little tired this morning is ok. It will be interesting to see how I feel tomorrow morning.