This is because the Casper pillow is very adaptable, and can be used by those who sleep in any position. It is not necessarily the best pillow for back sleepers or stomach sleepers, but it is very useful as a pillow for your spare room or guest room. It is likely to meet the needs of everybody. It is not necessarily the best for neck or back pain, but it is an excellent mattress suitable for most sleepers. If you like it, then it is sure to meet your personal needs.