Yes, definitely breathing technique is a good way to calm down, but I had been suffering a lot of stress from work and martial problems. A friend of my, who is a sleep therapist, suggested that doing about 10 minutes of strenuous exercise just before taking a nice warm bath can do wonders. A lot of people have built up energy in their systems that they have to release before being able to rest. Even more important is that doing push ups or doing an exercise that stretches and rips muscle will require repair at night when you sleep. Body repair requires energy and you need to deplete that before you begin to feel tired. Just a thought for those of you who have extra energy to burn before bed. Good luck.