Perfect Sleep Mask for Side Sleepers : upgraded sleeping mask snug fits the contours of the temples, the height difference design on both sides perfectly cushioning the pressure to the temples when sleeping on the side. Making you sleep better and relax well. .What are the functions of 3D eye mask? : The connected 3D contour cup of makes this sleep eye mask more breathable, and there is no pressure on your eyeballs and nose. In addition, the deeper eye sockets design won't rub your lash. .Block Lights Perfectly : This invisible nose bridge of this sleeping eye mask is designed to effectively block the lights from the bottom of the nose area, bring you a completely dark sleeping environment. With it you can sleep well anytime and anywhere. .Cool Feeling : Are you troubled by the sweaty while wearing eye masks? If yes, this cooling night mask is your perfect choice. The eye cover is made of double-side ice silk fabric, super breathable, and no hot.