If you want to overcome depression because of your sleeping problems the easiest
way for you to be able to do so is to simply make sure that you are healthy enough to get a good nights sleep. If you have a problem with carrying around additional weight, diet and exercise healthfully in order to get down to a more trim figure. If you have a serious problem with sleep apnea you may be able to use a breathing machine which will help you to get the deep sleep that you need. Although it is going to take effort on your part, the good sleep that you get and the lack of depression that you feel will be well worth it.