There’s the everlastng feeling of “Just one more” but it always gets overriden by “This is interesting.”
I recommend setting an alarm for bed that cuts through Do not Disturb, Sleep Mode, and so on, since for iPhone users, the alarms are so finicky. From the Apple app store I use Alarmy, it overrides a lot of your settings. You get a definite reminder of when to actually put the phone down.