In my experience, using a screen colour app just encourages me to use my phone more not less. Even with these apps a phone will still emit a large amount of blue light and having the light source so close to my face I still notice it disrupts my sleep.<p>If you believe using your phone late at night is harmful to you at all then why continue to maintain a that behaviour? Wouldn&#x27;t it be much more beneficial to your health to avoid screens altogether at night? I&#x27;m not saying that it is easy but I believe it&#x27;s a good healthy goal to aim for just like getting exercise and eating well.<p>To your point about unhealthy eating habits I totally agree. I just don&#x27;t see phone addiction normally talked about as often as diet and exercise which is why I wanted to mention it.