Cold nights don't have to mean a shivering cat outside. This elevated shelter runs on a 30W waterproof heating pad that lifts the interior about 20°C (68°F) above ambient, controlled by a smart thermostat with power-failure, over-temperature, and over-current protection, so it can stay plugged in and running unattended (the pad takes roughly 10 minutes to warm up). Inside, aluminum foil and pearl cotton insulation trap that warmth, and an included blanket keeps your cat's belly cozy on top of it. The shell is 900D Oxford cloth with a dual-layer PVC waterproof coating to keep rain and cold air out, while iron pipe legs and an army-bed-style base carry the load and wind stakes anchor it against gusts outdoors. At 20.86 x 12.99 x 16.53 inches and 6.48 pounds, it folds flat for storage yet still fits a small to medium cat comfortably through the coldest months.