When we expect a good night sleep, the majority of us consider mattress characteristic and features, room temperature, room illumination, and noise. Hardly ever we will think about our pillows. There are a lot of options available nowadays. It is important to know that our cervical spine alignment is an important feature of our general well being. Selecting a head support which is equally comfortable to sleep with as well as be able to improve the quality of good night sleep, has to be a necessary foundation for a good nigh sleep.
What is the frequency of pillow replacement?
