Amazon calculates a product's star ratings based on a machine learned model instead of a raw data average. The model takes into account factors including the age of a rating, whether the ratings are from verified purchasers and factors that establish reviewer trustworthiness.
Definitely not that fluffy as expected. It works for me as I put a hard pillow beneath this one. Secondly, it is not the same product as it is displayed. For this reason, I hesitate to buy online but why to punish everyone for one's mistake. Overall, m not dissatisfied with the product but not very pleased as well. Would rate 3 out of 5