$25 off orders over $79 + free shipping with rebate. Promo code: SPRING25Unlike other sleep masks that simply block light, our Sleep Therapy Mask goes one step further with a relaxing photo luminous blue glow that eases your anxious mind, from a busy “Beta state” to a relaxed “Alpha state.” As the glowing blue lines begin to fade, you’ll drift off for a night of restful sleep. Features three brightness levels and three dimming timer options.