The ornamental design for a daybed for pets, as shown and described.
FIG. 1 is a perspective view of a daybed for pets showing my new design,
the broken lines are for purposes of illustration only and form no part of
the claimed design;
FIG. 2 is a right side elevational view thereof, the left side is
identical;
FIG. 3 is a front elevational view thereof, the rear being identical; and,