Mattress retention assembly and radiofrequency weld in surface covers

A hospital bed comprising:

• a sleep deck having an upper portion, a middle portion, and a lower portion that each define a support surface and an underbody that defines a notch, wherein an opening is defined by and extends through the upper portion and wherein a space is defined between at least the upper portion and the middle portion;
• a mattress disposed on the support surface of the sleep deck;
• an outer mattress shell encasing the mattress, the outer mattress shell including a fold defined by a weld extending through the outer mattress shell;
• and
• a mattress retention assembly operably coupled to the outer mattress shell, the mattress retention assembly including at least one of:
• a first magnet and a second magnet that selectively couple the mattress and the outer mattress shell to the sleep deck;
• a portion of the mattress retention assembly extending between the outer mattress shell and the sleep deck, wherein the mattress retention assembly includes a retention feature having a planar portion extending between the outer mattress shell and the sleep deck and a clasping portion frictionally engaged with the notch defined in the underbody of the sleep deck, and wherein the retention feature includes a plurality of ridges;
• an affixing member disposed on the outer mattress shell;
• and
• a retention ridge extending through the space defined by the sleep deck.

A hospital bed comprising:

• a sleep deck having an upper portion, a middle portion, and a lower portion that each define a support surface and an underbody that defines a notch, wherein an opening is defined by and extends through the upper portion and wherein a space is defined between at least the upper portion and the middle portion;
• a mattress disposed on the support surface of the sleep deck;
• an outer mattress shell encasing the mattress, the outer mattress shell including a fold defined by a weld extending through the outer mattress shell;
• and
• a mattress retention assembly operably coupled to the outer mattress shell, the mattress retention assembly including:
• a portion of the mattress retention assembly extending between the outer mattress shell and the sleep deck, wherein the mattress retention assembly includes a retention feature having a planar portion extending between the outer mattress shell and the sleep deck and a clasping portion frictionally engaged with the notch defined in the underbody of the sleep deck, and wherein the retention feature includes a plurality of ridges.