We design our beds to maximize the support of our mattresses. For example, a solid slatted base can provide firmer support, while slatted frames can provide better shock absorption. In addition, the combination of bed and mattress can affect the seat height of the bed. Whether a bed system is open or closed makes a bigger difference. In the case of a closed system, we recommend airing and rotating the mattress regularly to allow the accumulated moisture to escape from the bed. All Emma beds already take this factor into account and are designed to be very open.