At Casper, we believe in better living through better sleep for everyone. Our Mattresses do not have a weight limit and are designed to support all shapes and sizes.
As with nearly all new products, there may be a slight break-in period. Depending on how much weight your mattress is supporting, it may sleep a little softer or firmer - but the fundamental feel will remain the same.
That said, we always recommend using your mattress on a firm, flat, supportive base such as a platform bed or sturdy wooden slats (3-4 inches apart) in order to ensure its longevity. The Casper Foundation is also designed to keep the mattress in tip-top shape for many years to come. Rotating the mattress every 3 to 5 months is incredibly helpful to even the wear and tear on the surface. Since the Casper is a foam mattress, the cells will break down over time and with use, and rotating helps maintain the overall support and feel.