Comfort amenities are some of the major differences between the front and the back of the plane.  But bringing your own helps bridge the gap when you’re stuck on the wrong side of the curtain. Start with the Eagle Creek Comfort Neck Pillow.  The curved shape fits around your neck, creating a cradle that keeps your head comfortably supported. A micro fleece cover makes it softer than most inflatable plastic versions, and a high-tech valve makes inflation and deflation super easy.  $18.50 from eBags.com.