The question inevitably arises: a pillow at this price it is worth buying. Everyone will find twelve o'clock (midnight or rather !!!) at his door, for me it's an investment that I recommend. After 3 nights with some stiffness in the cervical, I spend excellent sleeps, propped the neck (so I turn myself over night). The use is to sleep on your back or on the side (without changing face as recommended). Important Note: the pillow is very firm (compared to other Tempur). I love. Size S is already very thick for my taste. I recommend.