The original form is its main asset because it is what allows this has a comfort pillow for those who sleep on the side like me (yes, it's actually more comfortable). As for the matter, when we tasted it, others pale in. The big thing about this pillow (hence "only" 4 star ") is the price and that of its housse.A note for those who move a lot, the pillow weighs some inherent weight has this famous material of space!