“Well it looks like you had some fun recently,” a friend said as he joined me for coffee. There, in the middle of my dining room table, is a device that does, now that he mentions it, look an awful lot like a sex toy. Moonbird‘s raison d’etre isn’t to raise your pulse and get you breathing heavily. Quite the opposite, in fact. The Belgian company has helped more than 35,000 customers find sleep and reduce stress through breathing exercises.