A sleep mask is recommended when you cannot eliminate light in your bedroom when trying to sleep. Light may be coming in through windows or from electronics in the room, or even from your partner playing games on their phone (of course, I’m not talking about anyone I know…)
Black-out sleep masks are also useful for those who fly frequently and have trouble sleeping on the airplane due to light in the cabin.
The PolarBlack sleep mask is made from a bamboo Fabric which is extremely Eco-Friendly, Thermo-Regulating (cooler in summer, warmer in winter), Softer than even the softer of cottons, Hypoallergenic and Moisture Wicking (encourages evaporation.) Bamboo is a remarkable natural resource.
You can find this sleep mask here.