FIG. 1 is a top, front perspective view of an ornamental design for an adjustable feet warming blanket comprising an upper cover and two lower pieces attached using a zipper;
FIG. 2 is a bottom, rear perspective view thereof;
FIG. 3 is an exploded view thereof, showing the upper cover of the adjustable feet warming blanket spread open, and the two lower pieces attachable using the zipper;
FIG. 4 is an exploded view thereof, showing the upper cover of the adjustable feet warming blanket folded to be positioned on a mattress;
FIG. 5 is a front elevation view thereof;
FIG. 6 is a rear elevation view thereof;
FIG. 7 is a right side elevation view thereof;
FIG. 8 is a left side elevation view thereof;
FIG. 9 is a top plan view thereof;
FIG. 10 is a bottom view thereof; and,
FIG. 11 is a top, front perspective view thereof, showing the adjustable feet warming blanket wrapped around the mattress of a bed and a user's feet positioned within a pocket created by the upper cover and one of the lower pieces of the adjustable feet warming blanket.
The broken line showing of the bed, the mattress, and the user in FIG. 11 is for the purpose of illustrating environment and forms no part of the claimed design.