Manta Sleep Mask with FreeFit by CoolShitiBuy The Manta Sleep Mask is the World’s 1st modular sleep mask for 100% blackout with freeFit. The adjustable modular eye contours makes Manta the best sleep mask you can get to fit your unique face for sleeping. Perfect for Power...... 2 2,306 $20.00 via Kickstarter Facebook Pinterest Save2 Check it out