There comes a moment at the end of the day where you feel like the life has been completely sucked out of you and the only refuge from it all is your bedroom. This is essentially how I handle stress. While not entirely the best method to handle anything, I find sleeping works for me.
Everything I should be concerned about, act on or plan on, does not matter one bit when I am tired or I end up f***ing it up royaly when I do. In the name of just being human, I will sleep in place of running myself nuts.