[ Care and Use Advice ] It is recommended to hand wash with water below 40?/104? before wearing to take care of your eye health. Although our unique sewing technology makes the sleep mask strong and durable, with seams that are less likely to come off, for greater durability and stability, we recommend that you: wash with water and air dry, and do not wring. Do not wash with strong detergents. [ Suitable All Sleeping Position ] This eye mask for sleeping is super lightweight and soft, whether you sleep on your back or on your side, it's suitable for side sleepers. [ Comfortable & Breathable ] This eye mask for sleeping is made of slow-rebound memory foam which is softer, lighter, and more breathable than general foam, bringing you an excellent sleeping experience. [ Blocking Lights Perfectly ] Are you troubled by light leaking around the nose of the eye mask? Pick up our sleep eye mask could change the game because the invisible nose will block lights from the nose area. [ Why Choose 3D Sleep Mask? ] The 3D sleep mask could avoid pressure on the eyes. In addition, the depth eye sockets design won't smudge your makeup and rub your lash, you can enjoy sleep anytime and anywhere.