An aircraft berth includes a bowed slat surface; the bowed slats provide a degree of cushioning apart from a foam mattress. The bowed slats are held in deformable brackets that allow the bowed slats to expand laterally as they are compressed vertically, and allow a degree of twisting of individual bowed slats. The bowed slats may be placed in a berth frame with greater or lesser density along the length of the berth frame to provide more or less support at particular locations. Alternatively, or in addition, bowed slats with greater cross-sectional thickness may be used were more support is desirable. The bowed slats may be organized in sub-frames that may be oriented to provide head and/or knee support.