Abstract: A rocker includes a basket pivotally mounted to the crib that has a mattress laying horizontally therein and covering an entire bottom thereof. First and second brackets couple to an outer surface of the basket and are located at axially opposed ends thereof. First and second pairs of anchor arms have proximal ends connected to the brackets. The anchor arms have axially opposed distal ends spanning away from the basket and terminating adjacent to a frame of the crib. The arms are telescopically adjustable along a longitudinal length thereof and each of the arms are independently articulated. A plurality of support levers are conjoined to a top edge of the crib and are connected to the distal ends of the arms. The device includes a mechanism for oscillating the basket and a mechanism for automatically playing back an audio file while the basket is oscillating.