SleepPhones® mentioned on SmarterTravel Booking an Airport Nap: What It's Really Like to Use a Snooze Cube By Shannon McMahon (Link to article) Apps like white noise provide relaxing soundtracks that range from waves crashing to an air conditioner humming, or just simple static. Choose one that relaxes you and use headphones that will let you sleep comfortably, like SleepPhones.
