Easy self-examination to determine whether to move the pillow standard

1. In the absence of physical illness cases, often feel numbness in the neck after the morning acid rises.

2. The pillow has lost elasticity, slapping a is required to restore some flexibility.

3. After managed to adjust my pillow, it quickly back to flat.

4. Pillow agglomeration, rugged, and filler has a damp smell.

Pillow use how long to replace appropriate: there are so many pillows is renewedonly once every four years, in fact, pillows should be replaced once every 1-3 years.