N.M.
There are lots of morning people, I'm a night person. I go to the gym after all my kids go to bed. I belong to a 24 hr gym, I usually get there around 9, watch a show I like and leave at 10. Once I come home I finish packing lunches, go to bed by the 1:00 news. For me, it does not interfere with my sleep, and cuts down on my snacking.