Are memory foam pillows good for neck pain?

Reviewers and chiropractic threads we read generally agree that a properly lofted memory foam pillow can reduce morning neck stiffness for side and back sleepers, because the foam holds its shape and keeps the cervical spine aligned. The caveat in the data is loft: a pillow that's too tall or too firm for your shoulder width can make pain worse, which is why adjustable models tend to score better for pain-relief use cases.