This attractive kitty sill is available with or without a heating element.

Decorative brackets adjust to fit any window sill (no tools required) and supports up to 40 lbs. Made of orthopedic foam under a soft, machine washable fleece cover. Surface stays 12 to 15 degrees above room temperature and warms to 102° when in use.

Adjustable to any windowsill using provided Velcro fasteners. Screws are provided for more permanent attachment. Size: 14"L x 24"W

The K&H Thermo Heated Kitty Sill is also available for $34.95 (click order button to order). The heating element is removable for year round use.
Size: 14"L x 24"W