My pledge to avoid artificial light also made socialising difficult.
Scientists including Stephen Hawking and Elon Musk have signed a letter pledging to ensure artificial intelligence research benefits mankind.
Alongside this branding test, the coffee chain also recently pledged to remove artificial dyes from its doughnuts by the end of 2018, while featuring espresso on the menu of its 50 "NextGen" stores opening this year.
Mars joins dozens of other companies that've pledged to remove artificial colors from their products in recent years.
Sandwich chain Panera Bread Co. is now part of an ever more crowded club of companies pledging to remove artificial ingredients from their food.
In a wide-ranging interview, Pichai also called for world leaders to collectively pledge not to use artificial intelligence systems for warfare.
And Ben & Jerry's Homemade, the popular ice cream maker in Vermont, also carries a label on every pint of ice cream that says its farmers pledge not to use artificial growth hormones.
By 2020, Desso has pledged to make its artificial turf pitches – which are made from polyethylene, polypropylene or nylon – 100% cradle-to-cradle certified.
Just as Kraft is promising with its macaroni, so Nestlé, the world's biggest food firm, is pledging to remove all artificial flavours and colours in more than 250 types of chocolate sold in America.
Tesla, founded in 2003, has gained international recognition for its battery-powered vehicles and "autonomous" driving technology, promoted by Musk, the ambitious entrepreneur who makes headlines for bold pledges about space travel, artificial intelligence, underground tunnels and driverless cars.
The firm's leading position is closely linked to its pledge to go all out for artificial intelligence.
