Chronotype and Improved Sleep Efficiency Independently Predict Depressive Symptom Reduction after Group Cognitive Behavioral Therapy for Insomnia Chronotype and Improved Sleep Efficiency Independently Predict Depressive Symptom Reduction after Group Cognitive Behavioral Therapy for Insomnia Download Social Support and Sleep Symptoms in US Adults A Pilot Study on the Efficacy of Continuous Positive Airway Pressure on the Manifestations of Ménière’s Disease in Patients with Concomitant Obstructive Sleep Apnea Syndrome