For the patient's pillow foam developed to help prevent bed because it is made of small beads, foam decreases a skin and use nano-fabrics with good ventilation.
For infants Foam pillows developed to help prevent pressure ulcers. Because of the small foam reduces pressure on the skin and cloth nano features better ventilation.
For patients with small children. Memory foam pillow was developed to help prevent bedsore. Because of the small foam reduces the pressing of the skin and fabric properties of nano ventilation well.