Does bedtime mean putting down your iPad and getting under the duvet so you can scroll through Twitter on your phone?
Well, according to one London doctor, using your phone before bed could be disrupting your sleep by up to an hour each night.
Professor Paul Gringras from Evelina Children’s Hospital in London is now calling for smartphones and tablets to come with a ‘bedtime mode’ to help protect our sleep.
The expert told BBC News that the new ‘sleep’ setting (separate from sleep mode, which automatically puts phones on silent at night) should filter out the wavelengths of light which disrupt the production of melatonin – the chemical the body needs to help you nod off.
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