Sitewide Savings - 20% Off Sitewide + Free Shipping with Rebate! Promo Code: SAVE20Unlike other sleep masks that simply block light, our Sleep Therapy Mask has a relaxing photo luminous blue glow that eases your mind from a busy “Beta state” to a relaxed “Alpha state.” As the glowing blue lines begin to fade, you’ll drift off to sleep. Features three brightness levels and three dimming timer options. Click here to download a free sleep coaching audio track from Sleep Therapist Lee Tiller.