Alpicool C9PT Mini Portable Freezer, 12 Volt Car Refrigerator, 10 Quart Fast Cooling, with 12/24V DC and 100-240V AC for Outdoor, Camping, RV, Truck, Boat

Adamson B10 mattress cooling pad. The pad is good quality but the controller is crap - just throw that awayhttps://www.amazon.com/Adamson-B10-Bed-Cooling-System/dp/B0B96VK75R/ref=sr_1_1?crid=3SSEXNNE15LRV&dib=eyJ2IjoiMSJ9.bt8v8LBFWVG66wyjQsvzTrjyBJQwUTXoGYJ3wtrGqAnPs-b3F9QpbOiQO6HXsUF0gyBxZWbdZspkfQWtaYKJH03UaCJ6IGBVt8rwsU-k1Yx-09v8d9i3Y_cnoFXC9SuSVoKrcLpGRW7roTBeCMMxagicmOK8CD86ZLZVQ-PoGmp9tDQE7MasrgwBb-gxKTJxTv9ZD1ScFP-nSKcP5aF1F6fDt4fn48hnVlOUs4bFuso.ags-1PA0Qw0D4KIENGiD_1Kx9Uf2WqjH-fhSvydQeT8&dib_tag=se&keywords=adamson+b10+bed+cooling+system&qid=1781376726&sprefix=adamson+%2Caps%2C192&sr=8-1 portable cooler. There are various sizes and temperature settings. Some use a Peltier cooler, other have a compressor. Pick one that covers your desired temperature range:https://www.amazon.com/Alpicool-C9PT-Portable-Refrigerator-4%C2%A8H-68%C2%A8H/dp/B0BRKJLTPY/ref=sr_1_4?crid=1XRR1CAWQB77M&dib=eyJ2IjoiMSJ9.9zOpCUsvIUJYeS66tuXcwVcoJZp8wcUlo_Jddi-joIs06zu5OMMqQpmzVZEFD2DCcvgeVYIDav3_BTYNya-JjewHy2uHC_UyDxTimsZw5R3t5rHvJNnYCiYo47hhJC25lFFBgQ81AZimP1w72yZJtHep1-20K2RG8hARRpCo4wNYXZy2D-FD1ffZAPtNz7zq7vBhDUwLKSRgIawAneypVHdYCwP6tPf4k_QfzS9DBnU.KsipvF7k7NYxRxYbPdYTOqh0PGixUaEgieaMFeSDcRA&dib_tag=se&keywords=10%2Bquart%2Bportable%2Bcooler&qid=1781376889&sprefix=10%2Bquart%2Bportable%2Bcooler%2Caps%2C218&sr=8-4&th=1 Any 12V pump. I got this one: https://www.amazon.com/dp/B00JWJIC0K?ref=fed_asin_title Then just fill the cooler with distilled water, drop the pump in the reservoir, and connect the pump to the lines from the mattress pad. Set your desired temperature and turn on the pump, and you're done. -under $400, no ongoing subscription cost-physical button to adjust the temperature setpoint, no phone app needed -does not require wifi connectivity or external server -no AI nonsense and no surprise mid-night temperature swings-when the pump eventually leaks and fails (as they all do), it leaks into the cooler, not on your floor. Buy another $20 pump to replace it. All the parts are easily repairable/replaceable.