| 摘要 |
A system is disclosed for facilitating rotation of a mattress in a horizontal plane carried by a box spring or a platform. In order to facilitate rotation, slick surfaces between the mattress and the box spring or platform are selectively placed in engagement with each other, in one embodiment of the invention. The slick surfaces may be provided by two (2) separate covers; one cover for the mattress and one cover for the box spring, platform or bed skirt. One cover is provided with a slick and non-slick surface. The other cover may be the same as the first cover or may have slick surfaces on two sides. In an alternate embodiment of the invention, one of the covers may be provided as a protective cover that encapsulates the entire mattress. In another alternate embodiment, one cover may be provided that cooperates with a slick surface that is integrally provided on one or the other of the mattress or box spring or platform. In yet another alternate embodiment of the invention, slick surfaces may be provided on both the mattress and the box spring or platform. In this embodiment, in order to prevent movement of the mattress with respect to the box spring or platform, the mattress is secured relative to the box spring or platform by removable fasteners in a normal mode of operation. |
