In a study of adults without insomnia, there was no significant impairment in driving performance the morning after taking DAYVIGO. Impairment was seen in some people taking the 10mg dose. DAYVIGO may cause serious side effects including decreased awareness and alertness. The morning after you take DAYVIGO, your ability to drive safely and think clearly may be decreased. You may also have sleepiness during the day. Do not take more DAYVIGO than prescribed. Do not take DAYVIGO unless you are able to stay in bed for a full night (at least 7 hours) before you must be active again. Take DAYVIGO right before going to bed. Do not drive, operate heavy machinery, do anything dangerous, or do other activities that require clear thinking if you take DAYVIGO and have had less than a full night of sleep (at least 7 hours) or if you have taken more DAYVIGO than prescribed by your healthcare provider. You may still feel drowsy the next day after taking DAYVIGO. Do not drive or do other dangerous activities until you feel fully awake.