20 Pet furniture; cat houses and cat caves made primarily of wool; enclosed cat beds and sleeping quarters constructed of felted wool; pet shelters made of wool for indoor use; wool-based hideaway furniture for cats to nest and seek privacy; pet beds made of matted wool with openings allowing entry and exit; multi-level cat trees and towers; cat trees comprising sisal-wrapped scratching posts, ramps, perches, and condos; wooden cat trees with suspended toys and dangling accessories; cat furniture with enclosed dens, scratching areas, and elevated sleeping platforms; freestanding cat activity centers made of wood, particle board, sisal and fabric.