They value their sleep. These few know that their sleep is very important to them. Sleep helps them rejuvenate and calm their mind. They know that SLEEP is a way reinvent their already depleted energy and so they get 7 to 8 hours of sleep each night.
After all, positive first impressions are key—you’ll want to make a great and positive one on interviewers. Part of how people initially assess others is how they appear, making dressing for success more than just a matter of vanity.