Purchased a King size Panda Topper in January 2021 and after 4 sleeps it dipped IN THE MIDDLE! I’m not overweight and move to different sides of bed as I sleep alone, I only sleep in this bed as it’s my sanctuary when my husband snores! Therefore I was more than surprised and disappointed that the Topper had dipped. Topper was returned and replaced swiftly with no bother. Replacement Panda Topper arrived 29 January 2021 after a few sleeps same again it has DIPPED IN THE MIDDLE! I haven’t bothered to return the topper as even though it has dipped and has NO SUPPORT in that area I move to different parts of the bed to sleep and it’s better than sleeping on just the mattress which is too soft. Maybe the Topper would work better on a hard mattress, who knows! Would I recommend NO.