It really works well!
I use my Wrap-a-Nap for sleeping on airplanes.  The plush fleece has a calm, soothing effect on me.  It provides a comfy pillow even if I'm resting my head against a window.  It also effectively blocks out all light.  While the Wrap-a-Nap does muffles the noise, I still add my own ear plugs for complete noise deadening.  Before I got my Wrap-a-Nap, I wore a light blocking mask plus a horseshoe shaped neck when I traveled on airplanes.  The Wrap-a-Nap is a much more comfortable option.
Rating: 5 stars