A new study from Brigham Young University and Cincinnati Children’s Hospital Medical Center says that using your phone before bed, with or without a blue light filter, does not affect your sleep.
The university studied 167 people between the ages of 18 and 24. A third of the group used their phones with a feature like iOS ‘Night Sight’ turned on, the second cohort used their phone regularly, and the final group did not use a phone at all before bed.
In the three groups, the research found no difference between the sleep patterns of the test subjects. After the initial test, the groups were segmented based on their sleep time, including people who got closer to seven hours and people who slept around six hours.
Again, people who only slept six hours, well below the recommended average of 8 to 9 hours, had poor sleep patterns without using a phone before bed.
The group of people who slept about seven hours saw slight variations in sleep patterns based on phone use before bed. And finally, people who didn’t use a phone before bed also slept much better than phone users.
The university suggests that blue light has little to do with your sleep, and instead simply using your phone and activating your brain to think about things or get excited can keep you awake more than just light.
Fountain: Brigham Young University