Lights-on sleep is associated with increased N1 (Stage 1) sleep and decreased slow-wave (deep) sleep ( ScienceDirect ).
Light stimulates cells in the retina that tell the brain to stay awake, making it harder to transition into deep sleep stages (Huberman Lab). 2. Physical Health Risks sleep_with_the_lights_on
Use blackout curtains or a sleep mask to block outside light. Lights-on sleep is associated with increased N1 (Stage
Nighttime light exposure can increase heart rate and the risk of high blood pressure (Sleep Foundation). Physical Health Risks Use blackout curtains or a
The Impact of Sleeping with the Lights On While leaving a light on might offer a sense of security, research suggests that even dim artificial light during sleep can have significant negative effects on your health and sleep quality. 1. Disruption of Circadian Rhythms
Light exposure at night suppresses the production of melatonin , the hormone responsible for signaling your body that it is time to sleep ( Sleep Foundation ).
Light doesn't just make it harder to fall asleep; it changes the quality of the sleep you do get.