Furniture Design Sinus Sun Lounger by Christoph Guenther Sinus is sun lounger, which matches the user, no matter how big, small, tall or short. The unlimited number of individualized lying positions signifies the special feature of Sinus. The way you adjust angle and position operates on a comfortable height instead of being underneath the lounger. The completely different adjustment concept goes without a snapping raster and operates with tension, not compression and your head will find calm rest on a smooth shaped, wooden ring, inspired by your favorite pillow.