It isn't clear how many people will actually take time off to snooze because they have to make up the lost hour of work - and many people already use their lunch breaks to sleep. If employees do want a nap, they will have to let their supervisors know in the morning, and arrive at 08:00 or leave at 19:00, since all SMG employees are required to work from 09:00 to 18:00, the Korea Observer says