Sleep problems may take many forms such as insomnia, sleep apnea, restless legs syndrome, narcolepsy, nightmares, night terrors, and more. According to the American Sleep Association, 30 percent of people have insomnia and 50 to 70 million people in the U.S. have a diagnosable sleep disorder. In most common situations, improvement can be seen in a few sessions. Evidence-based psychotherapy includes behavioral and cognitive-behavioral therapy for sleep. This can be in the form of parent-training for children with sleep problems and sleep refusal and individual or family therapy for adults from the convenience and comfort of your own home.