I Didn't Run Today

I thought I had pretty good sleep last night, but when I got up my heart rate was 67, and I felt tired. I thus didn't go running. Later in the day I took a 1-hour nap and felt better when I woke up. My son and his family came for dinner, so I didn't run in the late afternoon. Whether I run on Monday or not depends on how I feel and how high my wakeup heart rate is.