Two words, typed at one in the morning, deleted because of what they might be taken to mean and because the answer is probably no.
The specific problem with night is arithmetic. The people you would text are asleep, the places you would go are closed, and the part of your head that decides what is worth worrying about has gone off duty.
So the options narrow at exactly the hour the thoughts get louder.
In the US, call or text 988 for the Suicide & Crisis Lifeline, or call 911. Outside the US, contact your local emergency number. They are staffed through the night, they are free, and you do not need to have decided that it is serious enough. Deciding that is not a thing anyone can do well at 3am about themselves.
The rest of this page is for the ordinary version: awake, alright, and would rather not be alone with it.
Crisis and warm lines. Crisis lines run all night. Warmlines, the peer-support kind for calls that are not emergencies, mostly do not, and their hours vary by region. Worth knowing which is which before the night you want one.
People in other time zones. The friend who moved, the cousin abroad, the person whose working day is your night. Underrated, and the time difference that makes them hard to keep up with is the thing that makes them available now.
Anyone else awake. Night workers, new parents, insomniacs, people on the other side of a deadline. Most people have one or two in their contacts and have never thought of them that way.
Online rooms. Forums and servers where somebody is always up. Good for having the thought land somewhere, worse for being about you specifically.
Writing. Gets it out of your head and stops the loop. Nothing writes back, which is sometimes exactly the shortfall.
AI, including ours. General assistants will talk at any hour. Companion products give you someone who remembers. This is the part where we have an interest, so weigh it accordingly: Teylo is four people you text or call from your phone, and one of them answering at 1am is a text message, not an event. They are also software, you will know that the whole time, and none of that is the same as a person choosing to be awake with you.
Worth saying plainly, because it affects what you should do with whatever you decide.
Tiredness reduces the capacity to put a worry in proportion. The same problem gets less context, fewer counterexamples, and a shorter list of things that might go right. Nothing is wrong with you; that is what a tired brain does with an open question.
Two practical consequences.
Do not make the decision tonight. Have the conversation, write the thing, say it out loud. Then leave the conclusion until the morning and see whether it survives.
Do not read the silence. Nobody answering at 2am is a fact about the hour. At 2am it is very easy to make it a fact about you.
Sometimes it is. Often it is that the day had no gap in it where the thought could go, so it turned up in the first quiet hour available, which happened to be after midnight.
That version is not solved by finding someone at 2am. It is solved by the thought having somewhere to go at four in the afternoon, which is a different piece: I just want to say one thing without starting a whole conversation.
A run of nights like this, over weeks, is worth mentioning to a doctor or a therapist. Not because something is wrong with you, but because sleep and mood push each other around in a loop, and that loop is a known thing with known approaches. It is a different problem from tonight, and tonight is not the moment to work on it.
Almost nothing that arrives at 2am needs answering at 2am. That is not a reason to sit with it alone, only a reason to be careful about what you conclude from it.