Derila Ergo Memory Foam Pillow is designed to address common sleep issues like neck pain, poor posture, and snoring by using an anatomical shape that standard pillows lack. The signature butterfly shape isn't just for looks; it features a central "cradle" that keeps your head at the right height while the side "wings" support your neck. This ensures your spine stays in a neutral line, which helps prevent waking up with a stiff neck or "cricks.Back Sleepers: The neck nook prevents the head from tilting too far back.