Pillow (1) for babies and / or infants, comprising a deformable core (3, 43, 43 ') not flat to accommodate the shape of the head of the baby or infant, characterized by the deformable core (3, 43, 43 ') externally comprises a layer (4) of three-dimensional woven fabric surrounding a barrier (7) that is impermeable to gases and liquids to prevent their access to the interior of the core (3, 43, 43').Almohada (1) para bebés y/o infantes, que comprende un núcleo deformable (3, 43, 43') no plano para acomodar la forma de la cabeza del bebé o infante, caracterizada por que el núcleo deformable (3, 43, 43') comprende exteriormente una capa (4) de tela tejida tridimensional rodeando una barrera (7) que es impermeable a gases y líquidos para impedir el acceso de los mismos al interior del núcleo (3, 43, 43').