(1) LOFT. The loft determines the angle of your head in relation to your spine. A pillow that’s too high or too low can force your neck to bend at an unnatural angle, causing strain and discomfort over time. That’s why sleep experts recommend choosing a pillow loft that keeps your head and neck aligned with your spine.
(2) SUPPORT. In addition to being the right height under your head, a pillow should also adequately support your neck.
(3) FIRMNESS LEVEL. The pillow firmness will determine where your head comes to rest, so it’s important to give this aspect careful consideration. Pillows that are too firm may cause pressure points, for example in the ears when side sleeping. On the other hand, pillows that are too soft may sag under your head and fail to provide proper support.
(4) PRESSURE RELIEF. A good pillow provides pressure relief by taking the strain off the neck and contouring to reduce pressure points. For the best pressure relief, choose a pillow that’s the appropriate shape and size for your sleeping position, and the appropriate firmness to alleviate pressure at contact points.
(5) PRICE. When shopping for a pillow, keep in in mind that certain types of pillows will last you for years, while others may need to be replaced after a year or two as their materials wear out and lose their loft or conforming abilities.
(6) QUALITY MATERIAL. Within broad categories such as memory foam or feather pillows, the quality of the individual pillow plays a significant role in determining its longevity and comfort. https://www.nhs.uk/conditions/neck-pain-and-stiff-neck/
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