Okay!  I bought this to top a firm mattress on a futon. I’d “overheard” a few grumbles about the mattress recently but hey, it’s a futon!  My solution was this topper. It’s well made, has a washable cover, easy to handle. Because the old futon frame was heavy & awkward, I searched & found a beautiful, affordable Dinkee Solid Wood platform bed (Wayfair), used the same mattress & added this topper. Heavenly!  I recommend!!