Software to better replicate natural daylight on screens

I will just check my emails one more time before I go to sleep. The bedroom is lit up with ghostly blue light as I scroll through the emails that arrived over the 30 minutes or so since I last checked. Sad but true and research suggests that I am not alone. Apparently, 95 per cent of us use some type of computer/smartphone at least a few nights a week within the hour before bed. Parallel research suggests that 63 per cent of the population experience ‘inadequate’ sleep. Could the two be related?