A bidet toilet seat is a smart toilet seat which is a bathroom appliance used to clean up yourself with water after a nature call. It was designed to replace the use of toilet paper. Bidet seats have been around for some time; it's only up until recently that a bidet seat was a unit on its own. Before it was attached to toilets, it resembled a porcelain sink or a second toilet. In the 1980s, Japan created an innovative design making it easy to introduce a bidet seat in any bathroom. Today, more than 80% of Japanese homes use bidet seats. Current innovation in bidet toilet seats has made it so that this smart toilet can be attached to the top of a toilet that replaces the original toilet seat. Bidet seats have advanced features like heated seats, an internal water heater, a warm air dryer, and memory settings.