If your feline needs a little eyeball entertainment during the day, the Kitty Sill could be the cat’s meow. This padded shelf attaches to a window ledge so your cat or kitten can perch for many hours of diversion. The sill adjusts to any windowsill using provided Velcro fasteners. You can also screw the sill to the wall for more permanent attachment. The sill, which will support over 40 pounds of feline, consists of soft orthopedic foam covered with washable faux lambskin. Though you could use the included heating element to warm the sill bed, your cat probably won’t mind practicing a little energy conservation, especially in spring and summer.