How did you sleep last night? Not so well, according to half of those we asked in a sweeping survey of the nation's sleeping habits.
D001521:Behavior Therapy; D015438:Health Behavior; D006306:Health Surveys; D006801:Humans; D006920:Hygiene; D006993:Hypnotics and Sedatives / Q000009:adverse effects / Q000627:therapeutic use*; D009622:Noise; D012890:Sleep / Q000187:drug effects; D007319:Sleep Initiation and Maintenance Disorders / Q000209:etiology / Q000517:prevention & control / Q000628:therapy*; D014481:United States
D006993:Hypnotics and Sedatives