Wow!! I’m in sleep in comfort Heaven! This 4” memory foam topper is absolutely amazing! We had our last mattress, which was a pillow top one for about 9 years and it began hurting my back really badly. We opted for a new firmer mattress. After having a couple weeks we felt we had gone too firm and needed a solution. This was definitely it! My husband and I are both just thrilled with the comfort and quality of this topper. I’m so glad we opted for this one. Highly recommended!!