Used only a few times and stored. There are stains on the bottom and the top outer surface. Please check the photos. IGLOO Sleep Dome Sleeping Pillow Color: Navy Material of the filling: PU Color: Navy Size: Approximately W72 x D55 x H36cm Brand: PROIDEA Shape: Semicircle A sleep dome to sleep under. Developed in collaboration with a sleep specialist. The dome part uses a special structure to block light and sound. Light blocking rate: 99.9%. Sound absorption rate: 126%. Just put your pillow in. The moderate sense of enclosure will turn your usual sleep into a good night's sleep. When you enter the dome, it feels like your ears are gently plugged, like you're wearing soft earplugs. It looks cramped at first glance, but it has depth, and there are small ventilation holes in the back, so it doesn't feel as enclosed as it looks.