Sleeping platform

Abstract

A sleeping platform for leveling and firming an inclined seating surface has a semi-rigid, rollable mat defining at sleeping area and is placed on the inclined seating surface, at least one wedge for placement under an edge area of the mat and on the inclined seating surface, a flexible, rollable mattress substantially equal in size to the sleeping area, for placement on an upper surface of the mat and a fitted sheet engaging at least around the mat and the mattress for providing a sleeping surface. A T-shaped bridge may also be included under the mat for keeping cushions of the seating surface from separating from each other during sleep.

What is claimed is: 
     
         1 . A sleeping platform ( 10 ) for leveling and firming an inclined seating surface ( 110 ), comprising:
 a semi-rigid, rollable mat ( 16 ) for defining a sleeping area, adapted to be placed on the inclined seating surface;   at least one wedge ( 22 ) for placement under an edge area of the mat and on the inclined seating surface;   a flexible, rollable mattress ( 14 ) substantially equal in size to the sleeping area, for placement on an upper surface of the mat ( 16 ); and   a fitted sheet ( 24 ) for engaging at least around the mat and the mattress for providing a sleeping surface.   
     
     
         2 . The sleeping platform of  claim 1 , wherein the mat ( 16 ) comprises a plurality of slats ( 18 ) and a hinge ( 20 ) between each pair of adjacent slats. 
     
     
         3 . The sleeping platform of  claim 1 , wherein the mattress ( 14 ) comprises a flexible foam mattress with one egg-crate patterned surface and an opposite flat surface. 
     
     
         4 . The sleeping platform of  claim 1 , wherein the mattress ( 14 ) comprises a memory foam mattress. 
     
     
         5 . The sleeping platform of  claim 1 , wherein the wedge ( 22 ) comprises a foam wedge. 
     
     
         6 . The sleeping platform of  claim 1 , including two of said wedges ( 22 ), each of a length less than a length of said mat ( 16 ). 
     
     
         7 . The sleeping platform of  claim 1 , including two of said wedges ( 22 ), each of a length substantially equal to a wide of said mat ( 16 ), one wedge being for engagement under a shoulder area of a user and the other wedge being for engagement under a hip area of the user. 
     
     
         8 . The sleeping platform of  claim 1 , wherein the mat ( 16 ) and the mattress ( 14 ) are rollable together into a rolled storage position. 
     
     
         9 . The sleeping platform of  claim 1 , wherein the mat ( 16 ) and the mattress ( 14 ) are rollable together into a rolled storage position, the wedge ( 22 ) extending axially along an outer surface of the storage position. 
     
     
         10 . The sleeping platform of  claim 1 , including a bridge ( 26 ) having a flat support member ( 26   a ) for placement under the mat and a vertical anchor member ( 26   c ) connected to a lower surface of the support member for engagement between two adjacent cushions of the seating surface to keep the cushions from separating when the platform is in use. 
     
     
         11 . The sleeping platform of  claim 1 , including a bridge ( 26 ) having a flat support member ( 26   a ) for placement under the mat and a vertical anchor member ( 26   c ) hinged to a lower surface of the support member for engagement between two adjacent cushions of the seating surface. 
     
     
         12 . The sleeping platform of  claim 1 , including at least one strap ( 28 ) connected to the mat for engaging around a cushion of a seating surface. 
     
     
         13 . The sleeping platform of  claim 1 , wherein the mat ( 16 ) comprised a plurality of slats ( 18 ) that are adhered to a lower flexible web ( 19 ). 
     
     
         14 . A sleeping platform comprising:
 a semi-rigid, rollable mat defining at sleeping area, adapted to be placed on the inclined seating surface; and   a flexible, rollable mattress substantially equal in size to the sleeping area, for placement on an upper surface of the mat.   
     
     
         15 . The sleeping platform of  claim 14 , including at least one wedge for placement under an edge area of the mat and on the inclined seating surface and a fitted sheet for engaging at least around the mat and the mattress for providing a sleeping surface. 
     
     
         16 . The sleeping platform of  claim 14 , wherein the mat comprises a plurality of slats and a hinge between each pair of adjacent slats. 
     
     
         17 . The sleeping platform of  claim 1 , wherein the mattress comprises a flexible foam mattress having at least one egg-crate patterned surface. 
     
     
         18 . A device for use with a sleeping platform on a seating surface having at least two adjacent cushions, for keeping the cushions from separating during sleep, comprising a semi-rigid support member for spanning over an area between the cushions, and a vertical anchor member connected to a lower surface of the support member for engagement between the two adjacent cushions of the seating surface. 
     
     
         19 . The device of  claim 18 , wherein the a vertical anchor member is hinged to the lower surface of the support member. 
     
     
         20 . The device of  claim 18 , including a flexible, high-friction cover layer on the support surface.