The Value of Sleep

The last two nights I have not slept well. Not sure why, but I've woken up several times each night, and when I fall asleep and wake up I feel like I haven't slept at all. I think that influenced today's run, which was advertised as Yasso 800s x 5. I did them all over the course of 6 miles, but I walked a couple of times and the last two were not as fast as they should have been. In fact, the last one really wasn't much faster than normal. The first three went okay, although the last of those was kind of painful. Today was also warmer than normal for the last few weeks, almost 80 degrees and full sun. I still blame the lack of sleep more than the temperature, though.