Hello, the creator of the Sense sleep tracker, has built products and services that millions of people around the world use every day. Sense is a simple system that tracks your sleep, monitors the environment in your bedroom and reinvents the alarm, so you can sleep better. Sense sits on your bedside table and combines the insight of your sleep patterns with the data of the environment in your bedroom, including noise, light, temperature, humidity and particles in the air. When you know what helps or hinders your sleep, you can fix it. Sense comes with a little device called a Sleep Pill. It simply attaches to your pillow and invisibly tracks your sleep at night. Sense knows when you're falling asleep, soundly asleep, thrashing about, or waking up. All this is possible with the highly sensitive accelerometer and gyroscope inside the Sleep Pill, which clips discreetly, and securely, onto your pillow.