My workouts help him sleep

I had stopped working out (sheer laziness) the past few months and have gotten back into the habit the past few weeks. I like to workout on my elliptical at night, after my son goes to bed, because it also seems to help reduce my stress levels. This morning my son told me that he likes me working out at night again because the noise of my elliptical helps him fall asleep... my new motivation is no more bedtime struggles!!