How Long Should You Wait Between Screen Light Exposure and Bedtime?

on bed with notebookExposure to screen light at night may affect sleep. Therefore, the question is how long should a person wait between screen light exposure and bedtime.  Optimal sleep is governed by circadian rhythm and homeostatic sleep drive. Screen light will actually interfere with sleep. Light as perceived by the brain after passage through the eye influences a number of body processes.

Screen light can be from televisions, mobile phones, computers, and tablets which will actually interfere with the relaxing buffer zone just before bedtime. The activity initiated by use of the devices will in itself reduce sleep duration. The blue wavelength of light is the most interruptive to circadian rhythm.

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Somnowell Inventor - Visiting Professor Simon Ash FDS MSc MOrth BDS

Prof. Ash is the inventor of the highly successful SOMNOWELL Chrome device for snoring and sleep apnoea.

The Somnowell Chrome is made to exacting standards in the Somnowell laboratory under the supervision of Visiting Professor Simon Ash. Prof. Ash and his master technicians create each Somnowell Chrome device using their wealth of experience and expertise.

Prof. Ash works at the forefront of his profession. He is a Consultant and Specialist Orthodontist with over 30 years clinical experience, with a special interest in sleep related breathing disorders, TMJD, and bruxism. He currently works in Harley Street London and two private hospitals in London as part of a multi-disciplinary team managing snoring and sleep apnoea, and is Visiting Professor of Orthodontics at the BPP University.