“All these sensors are looking at everything in the environment, light sound, temperature. All of the things that affect your sleep, humidity as well,” explained Proud, who said he taught himself to code when he was 9 years old.

Sense can also connect to smart homethermostats to automatically adjust temperatures as you sleep and wake up, he added.

“It’s [as] if you have something on your wrist, but instead it’s on the pillow,” he explained. “When you put your head on your pillow, it starts tracking.”

Proud, who appeared on the January 2017 cover of Forbes, was part of the inaugural class of The Thiel Fellowship.