Water Cooled Pillow - Peltier

I've abandoned this project, sadly. I'll keep it up for people wanting actively cooled water systems but as a note - when your pillow is colder than the ambient air, water will condense on it. On a particularly humid night you will wake up in the morning with a soaking wet pillow. I honestly see no way around this issue.

This is a cooler assembly for a water cooled pillow. It uses a processor heatsink and a cheap china made waterblock.

You can use this assembly for things that aren't a pillow of course, since it's basically just a device that lets you sandwich together a heatsink, a peltier element, and a waterblock. This would be great for making a camping fridge or a car seat cover or anything you want colder than ambient.

Peltier cooler - TEC1-12706

Waterblock - 40mm X 40mm X 12mm side outlet/inlet https://www.ebay.com/itm/132274814037

Heatsink - Most older AMD processor heatsinks will work. It's designed for the sock universal one, just check if the tabs line up with whatever you have.

Use thermal compound on both sides of the peltier module.

Pump: Any water pump will do, but the quieter the better. I've listed a 3d printable one below, it just needs a motor.

Power supply: 12V. I used a 650W server PSU I found on ebay for $13. Whatever one you buy, make sure it has a dynamic fan that only ramps up speed as needed, so its quiet.