Embodiments are directed towards a pillow with a removable core that includes a plurality of cut foam pieces of various or similar shapes/sizes. The pillow may include an outer shell case and an inner shell case (i.e., the removable core). The outer shell case may be made of a plurality of layers, including a backing layer positioned between an external layer and an internal layer. The backing layer may comprise a foam material. And the internal layer and the inner shell case may comprise an open mesh material. The inner shell case may be removably inserted into the outer shell case. A plurality of foam pieces may be disposed inside the inner shell case.