All our computer, mobile,television devices emit blue light, which really have a negative impact on our sleep.Some mobiles do have the blue light filtering & Windows 10 has an inbuilt functionality to use warmer colors to prevent this issue. https://www.bing.com/search?q=set+up+night+light+in+windows+10+site:microsoft.com&filters=guid:%224027563-en-dia%22%20lang:%22en%22&form=B00032&ocid=SettingsTips-BingIA The above URL will provide further information on how to activate this feature in Windows 10