[Sunken Design] Sunken design cat beds are specially designed for cats to sleep curled up, giving them a sense of security. Curling into a ball reduces the area of the body exposed and the risk of injury, resulting in a higher level of security and comfort. [Foldable & Space-saving] This cat hammock can be installed on the window or wall without taking up floor space. It folds upwards so you can store it away when not in use, making it easy and convenient to collect. It greatly improves interior space utilization. [Stable and Secure] The main support frame for the cat window perch is made of sturdy metal and, with mounting hardware, won’t bend, break, or deform. Four powerful suction cups provide secure attachment and no manual installation is required. Maximum load capacity up to 40 lb. [Zipper design & Multi-seasonal Use] The cover for this cat hammock uses a zipper for easy installation and removal. There are two material options: a breathable mesh that keeps your cat cool and comfortable in hot summer weather, and a faux rabbit fur material that is soft and warm for fall and winter, providing a cozy resting environment for your cat in cold seasons. [Pre-Installation Tips] To ensure the suction cups stick firmly to the window, soak them in hot water for 3 minutes to soften them. Dry them until they are just slightly damp, and clean the window. Apply the suction cups to the window and press firmly to squeeze out the air.