Soft mattresses have some common issues that may deter Canadians who prefer firmer options. Soft mattresses tend to sink more, generate more heat, and provide a ‘quicksand’ feeling (especially if they are made with memory foam). They can be less responsive or fail to provide proper alignment. Thankfully, most of the mattresses on our list avoid these common soft mattress pitfalls. That’s what makes them the best soft mattresses in Canada.