No pressure on eyes, eye space is wider and deeper than other flat sleep mask. Performance, to achieve a total darkness. Unique heat-bonded technology instead of glue, sturdy and durable, no easy to fall apart. Top quality fiber fabric never stain bed sheets or pillows. Low rebound memory foam makes you feel comfortable. For all size head circumference, fully adjustable buckle strap, easy to adjust and not get hair. To effectively block light and allow your eyes freely blinking. Ideal for meditation, yoga, travel, nap, insomnia. 9 7/8" L x 3 7/8"W