Judging whether it is a simple self-examination standard for changing pillows:
1. In the absence of other physical illnesses, the neck numbness often rises after morning.
2, the pillow has lost its elasticity, you need to shoot for a while to restore some flexibility.
3. After the pillow has been adjusted, it quickly returns to a flat shape.
4, the pillow has agglomeration, uneven phenomenon, and the filler has a moisture odor.
How long does it take to change the pillow? There are many people who change the pillow every four years. In fact, the pillow should be replaced every 1-3 years.