You can disagree and still sleep fine. Not everything needs to be settled tonight.

An open disagreement does not have to be closed before bed. The urge to settle it tonight is usually about your own discomfort rather than the issue, and nothing agreed at eleven out of tiredness holds up anyway. Two people can hold different views and still be fine with each other, which is the normal condition. Leaving it unsettled is allowed.

If something is unresolved tonight, say you are leaving it there for now and mean it. Put the phone face down and go to sleep. Look at it again tomorrow, when it will be smaller and you will be better at it.