Purchased and received the Relyon Kingsley Mattress over 8 months ago so have sufficient time to test its suitability. The mattress is heaven to sleep on. The first night I wasn't too sure but obviously it was new and took time to adjust to. Since then it has been perfect - not too firm nor too soft. This is the second Relyon mattress over the years that I have bought and you can certainly rely on Relyon for ultimate comfort.