Lunesta is a sleeping medicine. It helps for a full night's sleep. The starting variant of Lunesta is 1mg and there are three variants 1mg, 2mg, and 3mg, This medication is only used orally, before taking the medicine consult your doctor. Sometimes people face hangovers the next day after taking Lunesta. If you can’t afford a full night's sleep, don't take it. After taking this medicine you must need 7 to 8 hours of sleep otherwise you feel lazy.