Abstract: A pillow includes a washable L-shaped body that has longitudinal and latitudinal regions. The longitudinal region is abutted against a lateral edge of an infant car seat such that the latitudinal region protrudes inwardly towards the car seat center. The latitudinal region has a medially disposed end provided with an arcuate top edge curving upwardly away from a latitudinal region bottom edge, forming a curvilinear lip that is spaced from the top edge and the longitudinal region affixing mechanisms. A mechanism is included for affixing the longitudinal region to the car seat such that the latitudinal edge can bias towards and away from the back rest, adjusting a location of the lip. A mechanism is included for affixing a longitudinal region top edge to a car seat rear side, allowing the body to be freely positioned along x-, y- and z-axes while remaining affixed to the car seat rear side.