When was the last time you thought about changing your pillows? If your answer is "it's about time", you are not alone. Most people only focus on buying the mattress. They spend time and energy to choose a quality mattress but forget that an equally important part of our comfort is the pillow. If the mattress controls the support of the back and limbs, the pillow controls that of the neck.
The neck is one of the most delicate points of our body. It is the beginning of the spine and the connection of the body to the head. It is responsible for our posture and balance. A good pillow helps to correct these problems and therefore, to regulate our sleep. It should ensure that all the main joints of our body (knees, pelvis and shoulders) are in a straight line.
theoretically, the pad should be replaced every 18-24 months. To test your pillow you can do the fold test. Just pick up the pillow, fold it, and then release it. If it snaps back into place without any change, then you can use it, but if it stays folded, or leaves an obvious split mark down the middle, it's time to change it.
The position in which you sleep greatly affects your choice. If you sleep on your side, it means that the sides of your head will be the ones that will exert pressure. Do well to buy a pillow that leans towards the high level of firmness and high density. So it will withstand the push and won't flatten easily.
If you sleep on your stomach you need a soft pillow, but you can sleep without one. Thus the head and neck will not rise to a higher level than the rest of the body. If you use a pillow but feel lower back pain, then to balance the level you can use a small pillow in the area of the stomach and pelvis. If you sleep on your back, the best for you is a flat pillow, which maintains the aforementioned level but which provides support for the neck.
Even the type of mattress has something to do with your pillow choice. You have to combine softness with hardness. If you have a firm mattress, combine it with a soft pillow and vice versa. If you choose both equally in terms of firmness, you may end up sinking into a softer-than-necessary bed or feeling like you're sleeping on flat ground.