Block out all ambient light with our high quality, comfortable BioDark Sleep Mask Kit. Extra layers and a nose guard have been specially added to keep all light out to help maximize your own natural melatonin production. Made of cool cotton with 2 elastic bands, this mask can be used over and over again and washes easily. This kit also contains earplugs to block out noise so that your sleep is not disturbed. A handy drawstring carrying bag ensures portability so you can take it anywhere. Keep light and sounds away so you can focus on sweet dreams!