Why is it important to get the right pillow and mattress?
It comes down to one word; support. When you lie on a mattress and pillow while you're awake. your muscles are engaged in supporting your body. When your body falls into REM sleep your muscles completely relax, forcing you to rely on the mattress and pillow to provide support to your body, neck and spine.
If your spine is not properly supported, it can lead to back pain and sleep disturbances, which can decrease your sleep quality and reduce your body's ability to restore itself. Pillows come in different shapes, heights and materials to support your neck, head and particular sleeping profile.