I'm not a night exerciser

Yesterday morning I didn't get to the gym before work because I had a busy morning in the lab. I had intended to get there later in the day, but didn't make it. So, the boys were asleep at 8:45pm and I grabbed my sneakers and headed for the basement treadmill. I had a little stomach distress, so I was able to run only 2 miles and then I walked another 25 minutes. I ended up burning 450 calories- according to the treadmill- and I felt like I had worked pretty hard. Here's the real problem with an evening workout- at 2am I was still awake, and knowing we'd have a relatively full day today, I wasn't very happy about that side effect. It was better than no workout at all, and when I got on the scale this morning I was 0.5 pound lower than last Saturday, so it's all good. I'm actually leading the Through the Wall weight loss challenge. I can't remember winning much of anything before, and I know it's not likely that I will maintain this weight loss rate much longer so I won't likely win, but it's nice to have an early lead. I'm taking the day off today, and likely tomorrow as well because of family plans. But cardio intervals will come bright and early Monday morning again.