A neck therapy device supports the head of a patient in a supine, side-lying or prone position to eliminate the effects of gravity on the cervical vertebrae and associated musculature. A sliding platform supporting the head permits frictionless turning throughout full cervical motion and a cervical support can target a particular cervical vertebra to isolate motion to superior vertebrae. The cervical support is also used to apply traction and pressure to cervical muscles and vertebrae to effect soft-tissue mobilization and activate and strengthen cervical muscles.