Is it better for posture and back health of your sleep with a pillow or two?
Many back problems begin with the pillow too. The intention of a pillow is to support the neck, not the head. The normal curve of the cervical spine directed forward. When the elevation of the head, chin up much closer to your chest. Thus, forcing the curve to straighten .. There are pillows available with a raised portion for the neck. May be advisable to place in one.
Parallel Posture Sleep Pillow - parallelpillow.com