The pillow you choose is a vital choice you will make when buying one. The pillow should provide your head with the support it needs for the most comfortable sleep possible. It is very similar to choosing a mattress because you will get different materials and firmness you need to take in into consideration when choosing one for yourself. You want your pillow to give your head and neck ultimate support and to keep your neck and spine in a straight line to lessen the strain. If you sleep on your back, you would want to try a medium-firm pillow. If you sleep on your side, you would want a firm pillow, and if you sleep on your stomach, you would want a soft pillow to lessen the strain on your neck. The Sealy Coolsmart Gel Pillow will reduce heat build up to give you a cool nights rest.