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.
At first I was worried it was too firm for my 3 year old. But it’s the most comfortable mattress in the house. I have ordered another for my 3 month old, for when she goes into a cot. Great value, very happy.