Manta Pro Sleep Mask - 100% Light Blocking Sleep Mask for Side Sleepers, Breathable and Comfortable, Spacious & Zero Pressure for Long Lashes, Perfect for Sleep/Travel/Nap/Shift Work

**Manta Pro Sleep Mask Sleep masks engineered for side sleepers. As you lie on your side, Pro practically disappears. Unmatched breathability & ventilation, powered by advanced material science. No-ex...