Pierre is having trouble getting to sleep at night. Which practice is a way to improve his problem? watching calming TV before bed
getting out in the sunshine each morning
eating before bed to prevent hunger
going to bed at different times each night

Because without physical activity, the body has extra "energy" if you will, and so when it is time for bed you are not tired, so you end up staying up all night. also there is probably an effect on your internal clock, which messes with your melatonin production which goes hand in hand with your sleep cycle