MojoKid quotes a report from HotHardware: Do you worry that your significant other is having mid-day romps in your bedroom while you're stuck at work banging out TPS reports? There's an app for that, and a smart mattress with built-in sensors to detect when between-the-sheet activities are taking place, with or without your participation. It's part of what a mattress company in Spain is calling its "lover detection system." You can't make this stuff up. Or maybe you can. You might seriously question whether or not the so-called Smarttress from Durmet is a real thing or an attempt at a viral marketing stunt. By all accounts, it certainly looks real. There are two dozen ultrasonic sensors embedded in the springs of the mattress. These tell-all sensors detect the speed and intensity of motion, how long the mattress has been active, and the history of encounters. That data is used to create a 3D map in real time, which you can view on your mobile device with an app for either iOS or Android devices.