The K&H Kitty Sill is the ultimate cat window perch, combining strength, comfort, and versatility. It's the perfect cat window hammock, cat window bed, or cat hammock for window-loving felines. Designed to hold up to 40 pounds, this window cat perch is ideal for large cats. Featuring orthopedic foam and an ultra-soft washable fleece cover, it creates a cozy cat window seat or window cat hammock for your kitty to bask in the sun. Choose the heated model for added warmth—its internal thermostats adjust to your cat's body temperature for ultimate comfort. Installation is simple with hook & loop fasteners, or use the included screws for a secure window ledge for cats. Transform any window sill into a comfortable cat window seat for indoor cats. With the K&H Kitty Sill Cat Window Perch, your cat can enjoy a safe, cozy, and sunny windowsill cat perch! K&H heated products are safety certified, providing peace of mind with electrical safety standards that go beyond UL requirements; K&H doesn't just use safety-listed parts, we safety certify the entire product, ensuring unparalleled safety. Designed by K&H with over 25 years of experience in creating safe, innovative, quality products for pets, ensuring safe reliability and top-tier craftsmanship for pet parents; 1-year limited warranty.