An integrated adjustable headrest includes a first curved head support and a second curved head support. Each of the curved head supports is secured to an adjustable rail, which itself is connected to the vertical track of a respective interior compartment. The interior compartment is located near the top of a chair, near a headrest section, inside a cavity. The curved head support can slide in and out of the adjustable rail slot. When extended, a person can rest their head on the curved head support. The curved head supports are also tiltable and extendable by manipulating the interior compartments or the adjustable rails. Locking mechanisms allow a user to adjust both the extension of the curved head supports and the angle of the adjustable rail slots. Once adjusted, the locking mechanisms secure the curved head supports in a desired position.