Patient support surface with anatomical turn insert

A support surface for a patient support apparatus, the support surface being adapted for supporting a patient, the support surface having a head section, a back section, a thigh section, and a foot section arranged respectively from a head end to a foot end of the support surface along a longitudinal direction of the support surface, and having a right side and a left side defining a width of the support surface, the right side and the left side being disposed on opposite sides of a central plane of the support surface, the central plane extending parallel to the longitudinal direction and bisecting the width of the support surface, the support surface comprising:

• a core having a first layer and an anatomical turn insert, the anatomical turn insert being vertically adjacent to the first layer and having a first turn bladder and a second turn bladder, each being substantially arranged on one of the left side and the right side of the support surface and being substantially in mirror symmetry relative to the central plane, the first turn bladder having a first plurality of portions, the first plurality of portions including a longitudinal torso portion extending substantially parallel to the longitudinal direction near the back section, and an oblique thigh portion coupled to and extending obliquely from the longitudinal torso portion near the thigh section, the second turn bladder having a second plurality of portions being substantially in mirror symmetry to the first plurality of portions relative to the central plane;
• a cover, the cover having a top surface, a bottom surface, and peripheral surfaces extending from the top surface and connecting to the bottom surface thereby enclosing the core;
• and
• a pneumatic control assembly having a controller operable to selectively control inflation and deflation of the first plurality of portions and the second plurality of portions.