Integrated mattress sheet and waterproof mattress cover

Abstract

A unitary sheet that is provided with a waterproof underside layer. The sheet is used to cover a mattress, changing pad or similar surface to be occupied by a baby or a child. The upper layer of the sheet is a fabric (e.g. cotton) that provides comfort to a baby or child resting on the sheet, and it also provides waterproofing so that spillage or other waste matter does not seep through the sheet and onto the underlying mattress.

1 ) A dual-function sheet, comprising:
 an upper layer having an upper surface and an underside surface, the upper layer comprising fabric material;   a lower layer having an upper surface and an underside surface, the lower layer comprising plastic material;   the upper layer fused to the lower layer to form a unitary sheet;   whereby the underside surface of the lower layer is configured to contact a mattress to be covered by the dual-function sheet, and the upper surface of the upper layer is configured to contact a person.   
     
     
         2 ) dual-function sheet of  claim 1 , whereby the plastic material is waterproof 
     
     
         3 ) dual-function sheet of  claim 1 , whereby the plastic material is water-resistant.