TY - CHAP M1 - Book, Section TI - Insomnia A1 - Weinstein, Amy R. A2 - Stern, Scott D.C. A2 - Cifu, Adam S. A2 - Altkorn, Diane PY - 2020 T2 - Symptom to Diagnosis: An Evidence-Based Guide, 4e AB - Patients with insomnia sometimes have trouble falling asleep, sometimes fall asleep easily but wake up during the night, and sometimes have both problems. The American Sleep Disorder Association defines insomnia as “a repeated difficulty with sleep initiation, duration, consolidation, or quality that occurs despite adequate time and opportunity for sleep and results in some form of daytime impairment and lasting for at least one month.” SN - PB - McGraw-Hill Education CY - New York, NY Y2 - 2024/10/10 UR - accessmedicine.mhmedical.com/content.aspx?aid=1185664195 ER -