Serenity Memory Foam Pillows were specifically created with the side sleeper in mind. Equipped with a shoulder notch that can double as stationary cervical support, MLily™ Serenity Pillows keep you perfectly aligned throughout the night. By simply rotating the pillow, you can slope into two different positions, to provide you with options in case you want to switch it up to better customize your support. The memory foam is infused with bamboo and perforated to allow airflow to help keep you cool while you sleep. MLily™ Serenity Memory Foam Pillows are encased in an ultra-soft and soothing aloe-infused cover for superior comfort. MLily™ is proud to offer their Serenity Memory Foam pillows as the coolest, longest lasting, most supportive pillow on the market today.