Everything is worse at 3am. That's not just how it feels — it's how it actually works.
The part of your brain that keeps things in perspective, that says "you'll get through this" and "that thought isn't helping" — it's less active when you're tired. It needs sleep to function, and you're not getting sleep.
So the 3am thoughts hit harder. The same guilt that you managed during the day becomes unbearable. The same replay that you interrupted at lunch runs on loop without a pause button.
After someone dies by suicide, the 3am thoughts have a particular shape. They tend to be the "I should have" thoughts. The "what if I had" thoughts. The thoughts that put you back in the moment where you could have changed it — except you couldn't have, and the night won't let you remember that.
Knowing this doesn't make it stop. You can understand exactly why your brain does this at night and it will still do it.
But there's something in knowing that the 3am version of a thought is the loudest version, not the truest version. The guilt that feels overwhelming right now will feel different at noon. Not gone. But different. More like something you can carry and less like something that's crushing you.
You don't have to solve the 3am thoughts. You just have to get through them.
The night will end. It always does.