Mattress layer

Description

FIG. 1 is a perspective view of a mattress layer in accordance with the present design;

FIG. 2 is a top orthographic view thereof;

FIG. 3 is a bottom orthographic view thereof;

FIG. 4 is a front orthographic view thereof;

FIG. 5 is a rear orthographic view thereof;

FIG. 6 is a left orthographic view thereof; and,

FIG. 7 is a right orthographic view thereof.

Claims

The ornamental design of a mattress layer as shown and described.