Down pillow core: light, warm and breathable, suitable for winter use. But it needs to be cleaned and maintained frequently to avoid bacterial growth.
Latex pillow core: soft and comfortable, elastic and breathable, suitable for fully supporting the neck when sleeping, but the price is higher.
Memory pillow core: it has the characteristics of dispersing pressure and evenly supporting cervical vertebra, which can relieve cervical vertebra pain, but it may have odor.
Foam pillow core: soft and comfortable, elastic and breathable, suitable for people who like to take a bath at night, but not for people who sleep too long.
Straw pillow core: cheap, breathable, but easy to get wet, not suitable for long-term use.
Wool pillow core: warm and breathable, suitable for winter use, but it needs to be aired regularly to avoid bacterial growth.
To sum up, the choice of pillow material should be based on personal needs and health status. The cleaning and maintenance of pillow core requires regular drying and cleaning to keep it clean and hygienic.