The ornamental design for a fittedmattress covering, as shown and described.
FIG. 1 is a bottom perspective view of a mattress fitted with a covering of the present invention, showing the design in accordance to the invention;
FIG. 2 is a bottom plan view thereof;
FIG. 3 is a top plan view thereof;
FIG. 4 is a right-side elevation view thereof, the left-side elevation view being a mirror image of the right side;
FIG. 5 is a front elevation view thereof, the back elevation view being a mirror image of the front;
FIG. 6 is a stretched-out view of the covering of FIG. 1, as seen from the outside.
FIG. 7 is a close-up view of the unmounted covering of FIG. 1, as seen from the outside; and,
FIG. 8 is a close-up view of the unmounted covering of FIG. 1, as seen from the inside.
The broken lines in the drawings are for illustrative purposes only and form no part of the claimed design. The fitted mattress covering is shown with a symbolic break in its width and length. The appearance of any portion of the article between the break lines forms no part of the design.