Have a topper but its very hard so bought this product to have some softness and it certainly deliversat first thought it would be a bit to thin but dont be fooled its so comfy no more stiffness when i wakei read reviews and left for a few days for it to settle then placed on bedno smell at at all perhaps because i left for a few days to settle bought a double one for our caravan and its perfect so comfortable we decided to order a king sized one for our bed at home