A study by Brigham Young University (BYU) suggests that the iPhone’s Night Shift feature does not improve sleep for s as it is intended to. The study has, however, indicated some other findings to do with device use before sleep.
Introduced by the colors on the iPhone switch to warm tones after sunset and stay that way until morning. Night Shift can be enabled through the iPhone’s control center by pressing and holding on the Brightness button until the option to turn on Night Shift pops up on the bottom toolbar.
Although this color switch is supposed to help s fall asleep easier, accelerometer on their wrist to record sleep activity and installed an app to record smartphone usage. Overall, there wasn’t any significant difference between the groups, proving that Night Shift doesn’t have a profound effect on sleep quality.
What Do iPhone Night Shift Results Mean For Sleep Quality?
The initial test described above indicated that a change to warmer tones in the night is not necessarily beneficial. However, in a secondary test, the BYU researchers tested split the participants into a group of people that slept for at least seven hours and a group of people that slept for six hours or less each night. In the first group, those who didn’t use their phone before bed experienced a slightly higher quality of sleep than both those who used their phone with and without Night Shift. In the other group that experienced less sleep, there was no change in sleep quality even if Night Shift was enabled.
The results suggest two things. If a person is exhausted, they’ll fall asleep regardless of what they do before bed. Additionally, other psychological stimulants of using a phone, such as texting or scrolling through social media before bed, may add to blue light exposure to lower sleep quality. In short, the very engagement of using a phone before bed is a factor that affects sleep quality.
Source: BYU