Firm mattresses are designed for back and stomach sleepers who are more concerned with a flat surface that promotes proper spinal alignment than a cloud-like mattress that lacks support. In general, side sleepers will usually need something softer to contour to their shoulders and hips. A notable benefit of firm mattresses is that their dense composition tends to retain its showroom comfort for longer, as opposed to plush mattresses that are more likely to compress and settle. Simmons offers a handful of firm mattresses in a good range of comforts and price points so you can find the perfect model for your needs. Whether that's an extremely dense mattress or a medium-firm mattress, you can count on America's third leading mattress company to deliver a high-quality product at a fair price. Shop our selection of firm mattresses from Simmons for the best prices available anywhere, online or in-store.