Because we use premium materials and components, we do not have a strict weight limit for our mattresses. We design them to support a lot of weight. We recommend at most 350 pounds per person, or 700 pounds total for mattresses that can accommodate two sleepers, like queens and kings. Heavier sleepers require better structural support and are best served when a solid foundation or platform and a sturdy frame reinforce their mattress.
Box springs are not recommended for heavy sleepers. If slats are used on a bed frame, the spacing between them should be minimal. With heavier sleepers, regularly rotating the mattress from head to toe will also encourage more uniform wear.