The 7-in-1 versatile pillow is designed with a tunnel shape, providing various functions for different scenarios. It can be used as a fixed pillow in the car, a neck pillow on a plane, a couple sleeping pillow on a bed, a lumbar pillow for work, and more. The arched contour of the pillow helps maintain the natural curvature of the cervical spine, relieving tension and stiffness in the spinal column. It is suitable for various sleeping positions, including side sleeping, face down sleep, back and abdomen sleep, neck sleep, and tummy sleep. The pillow features an ergonomic arched patent design with u-shaped ABS plastic steel frames to support the weight of your partner's head, preventing numbness in the arm while cuddling. The pillow comes with an Ice Silk Skin-friendly Pillowcase that is breathable and removable for easy cleaning. The hypoallergenic pillowcase promotes airflow to keep cool and reduce wrinkles caused by pressure. The pillow is made of premium 60 high-density bamboo charcoal memory foam with slow rebound for cervical protection and stress-free sleep. The memory foam is skin-friendly, breathable, and moisture-absorbing.