Options：

1、Generally speaking, the pillow is high with 8 -- 15 centimeters more appropriate, the specific size is determined because of the physiological radian of each person;

2、The hardness of the pillow to moderate;

3、The length of the pillow under normal circumstances is better than a wider shoulder. Don't sleep on a pillow that's too small, because it won't support your neck when you roll over.

4、Pillow core to have a soft feeling and good elasticity, permeability, moisture, moisture absorption, etc.

5、Pillowcases are mainly made of soft and comfortable fabrics, such as cotton fabric, knitted fabric and bamboo fiber. The 3D mesh fabric with strong air permeability is also an ideal pillow fabric.