Apple just rolled out a helpful new health metric for Apple Watch users. Your daily sleep score, on a scale from one to 100, is based on factors like bedtime consistency, time spent in various sleep cycles, and the number of sleep disturbances you encounter.

Apple announced a full lineup of new products, including a range of new iPhones, three new Apple Watch models and a new set of AirPods. During the annual Apple event, held on Tuesday, Sept. 9, the tech giant announced the release of the highly-anticipated ...