Here is a smart eye mask that combines with your smartphone to help you take a power nap or relax while traveling. The Pure Enrichment Wave Sound Therapy Eye Mask has a soft, light blocking design with built-in speakers that last up to 8 hours on battery. You get 3 white noises to choose from (rain, stream, ocean) in addition to your own music.
The Wave Sound Eye Mask has simple touch buttons for easy control. Its soft cover is removable for easy cleaning. You can find out more about it here.