Most people blame desk work for neck stiffness, but sleep posture plays an equally big role.
Your cervical spine holds a gentle natural curve that needs consistent support overnight.
A pillow that sits too high forces your neck forward, mimicking constant phone scrolling.
If your pillow is too flat, your neck hangs unsupported, leaving muscles tense for hours.
Even the best pillows for a stiff neck fail if the loft does not match your preferred sleep position.