Global Calming and Sleeping Market By Type (Medications, Prescriptions, Over-The-Counter (OTC), Sleep Laboratories, Sleep Apnea Devices, and Mattresses and Pillows), By Application (Insomnia, Sleep apnea, Restless Leg Syndrome (RLS), Bruxism, Narcolepsy, and Sleepwalking), By Region, and Key Companies - Industry Segment Outlook, Market Assessment, Competition Scenario, Trends and Forecast 2019-2028