Using more mobile can harm our eyes but I 'm happy you are using eye protector's glasses and dark mood while using laptop. It is reality our screening time has been increased than it was in old traditional days. We work online, we enjoy online and sometimes we sleep online. Sorry here I mean we sleep during using our electronic gadgets. It happened many times with me, when I started sleeping my android was on and when I woke up it was still on. It is what screening time had become addiction for me.