To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyses reviews to verify trustworthiness.
I ordered same mattress 6 months back and they are very nice. This time I ordered one more so the size and quality would be same but I was shocked to see the current order. They reduced the length and quality is also reduced. The company should not do these type of things if customer is showing faith.