😴 At Apple, we found that when both buttons are the same size, people were 30% more likely to oversleep. During testing, we had a version of Clock that logged all touch gestures into a heat map.

🔎 It was recording where our sleepy hands were smacking around on the screen in order to see how accurate we were in turning off the alarms. It turns out we are pretty shit at it.

👍 Snoozing an alarm means you get another chance to try waking up again in a few minutes so it’s low risk. By making the button the stop button such a small hit target, it ensures you’re awake enough to actually stop it.