FIG. 1 is a perspective view of the vertical oval wall-mounted nightlight;

FIG. 2 is a right-side elevation of the vertical oval wall-mounted nightlight of FIG. 1, the mounting portion in the back of the nightlight being shown in phantom lines, a left-side elevation is a mirror image thereof;

FIG. 3 is a bottom plan view of the vertical oval wall-mounted nightlight of FIG. 1, the mounting portion in the back and bottom of the nightlight being shown in phantom lines;

FIG. 4 is a top plan view of the vertical oval wall-mounted nightlight of FIG. 1, the mounting portion in the back of the nightlight being shown in phantom lines; and,

FIG. 5 is a front elevation of the vertical oval wall-mounted nightlight of FIG. 1.

The phantom lines illustrate environmental elements and form no part of the claimed design.