Flents Siesta Sleep Mask 1'S by Flents. $2.96. One size fits all. Perfect for travel. Helps you sleep better naturally.. Soft, comfort padded, lightweight. Adjustable-one size fits all. Color of mask may vary from that shown in photo.. INDICATIONS: Flents Siesta Mask Reusable Sleep Eye Mask 1 pc Soft, comfortably padded sleep mask. Adjustable-one size fits all. One size fits all. Perfect for travel.