Pillow Core Dual Purpose Bidirectional Slow Rebound

Overview: REDUCE NECK & BACK PAIN: Proven contour design perfectly supports and aligns your head, neck, shoulder, and back. The slope keeps your head from rolling out of a stable position. Bringing a reduction of stress in the cervical vertebra and spine. Improving sleep and relieving neck and shoulder pain, discomfort rejuvenating your body. ERGONOMIC DESIGN: 4D contour pillows are well designed to support by following the natural curve of your body keeps air passages optimal for less snoring and more restful sleep. The cutouts on the side give your top arm a place to rest and keep it at an angle so your shoulder is not hunching over in front of you. 100% MEMORY FOAM PILLOW: Ergonomic sleeping pillow core is made of high- density slow rebound memory foam. That will provide sleeping firm support with amazing comfort and softness. Keeps its shape and firmness for long term use.  REMOVABLE BREATHABLE PILLOWCASE:  The Made of  Ice Silk Blue & Graphene Grey . A breathable s