Now, 'happiness blanket' changes hues according to moods

British Airways recently tested a wearable technology, called "happiness blanket" to measure passengers' moods in flight in their London to New York flight.

Passengers were fitted with wearable technology that measured brainwave patterns and used neurosensors to capture the passengers' moods in fiber-optic blankets and it turned colors red for tense and blue for calm, ABC News reported.

Volunteers wore a special headband, called a Myndplay headset, used to measure meditative state which relayed via Bluetooth to LED lights woven into the blanket, ranging from 1 to 100. The higher the number, the calmer was the passenger.

The airline said it hoped that monitoring a person's sleep and relaxation patterns will improve inflight service like the blankets could potentially even change the kind of entertainment offered inflight.