Redefining the concept of "rest as well as maintenance," this red light therapy sleeping bag integrates whole-body light therapy technology into the sleep experience. Built with over 2,570 LED chips, it evenly emits 660nm red light and 850nm near-infrared light, penetrating muscle tissue throughout the body during sleep to relieve shoulder and neck pain caused by prolonged sitting and lactic acid buildup after exercise, while also promoting blood circulation and improving sleep quality. The skin-friendly, breathable fabric and adjustable temperature design provide both warmth and comfort, easily covering even those 1.5-2 meters tall. With a 10-90 minute timer and overheat protection, it's perfect for office workers to relax before bed, athletes recovering from surgery, and those who work late to improve their sleep routine. The removable and washable liner ensures hygiene and durability, making every sleep a deeply therapeutic moment.