It's a very hard habit to break, reaching for that darn phone that we stayed glued to. I still fail at it on occasion, but I try. I'm kinda addicted to Township, so I have a very difficult time not checking at bed time to send off one more train, plane, or start new crops lol.
Or you may have a setting on your phone that changes to "night time", which eliminates the blue light that is what they say is messing with our eyes/brain. I've been looking at getting some blue light filtering glasses for work, as I spend 9 hours a day staring at the computer for work and then what do we do at home? Phone, computer, tv. Ugh.