A device for positioning between a box spring and a mattress for selectively raising at least a portion of the mattress, the device comprising:
- a) a base frame secured to the box spring or to a frame supporting the box spring, said base frame comprising a first side disposed proximate a head section of the mattress and a second side disposed distal the head section;
- b) a mattress supporting frame comprising a first side disposed proximate the head section of the mattress, a second side disposed distal the head section and a cross member extending therebetween, said second side of said mattress supporting frame being pivotally coupled to said second side of said base frame, wherein said base frame is adapted to nest within said mattress supporting frame when the device is in a lowered position to minimize the vertical space required for the device;
- c) a leveraging arm pivotally coupled to said second side of said base frame;
- d) a roller bearing secured to said leveraging arm;
- e) a linear actuator disposed on said base frame, said linear actuator comprising an electric motor and a displaceable shaft pivotally coupled to said leveraging arm, wherein extension of said shaft pivots said leveraging arm upwardly, raising said roller bearing against said cross member to lift said mattress supporting frame;
- f) a first mattress restraining member disposed at said first side of said mattress supporting frame for preventing the mattress from shifting as the mattress is raised;
- and
- g) a second mattress restraining member disposed at a foot section of the mattress for preventing the mattress from shifting as the mattress is raised;
- said second mattress restraining member comprising:
- i) a base member for resting on the box spring, said base member having a first side and a second side opposite said first side;
- ii) a mattress supporting member having a first side pivotally coupled to said first side of said base member and a second side opposite said first side of said mattress supporting member;
- iii) a plate member disposed at said second side of said mattress supporting member for preventing the mattress from shifting as the mattress is raised;
- iv) an elevating member disposed at said second side of said base member, said elevating member extending upwardly from and substantially perpendicular to said base member;
- and
- v) a movable support pivotally coupled to an upper portion of said elevating member;
- wherein said movable support is movable between a first position substantially parallel to said elevating member for maintaining a foot portion of the mattress in a substantially horizontal position and a second position substantially perpendicular to said elevating member for elevating the foot portion of the mattress.