We bought 4 beds during a sale. 3 for kids, 1 for us. They will be fine for kids until they are teens. Firm enough, with a little plush on top that they all like. The king size we have for ourselves will most likely break down quicker because my husband is 250 lbs. There is a little bit of "partner movement" when he shifts around or gets out of bed, but nothing offensive. For the money, it's a pretty good product.