Bedtime took two hours every night. Then a four-year-old was allowed to choose one sticker.

We'd tried the things you try. A sticker chart on the fridge, which worked for nine days. Earlier dinners. Later dinners. Cutting screens at five. A weighted blanket that he loved for a week and then kicked off the bed. Gummies, which I stopped buying, not because anyone told me to, but because I didn't love being the person handing my kid something to swallow every single night.

A friend sent me a link, the way friends do, with no explanation beyond that they were cute. They were stickers. Not the kind you put on a chart, the kind you put on pajamas. A dry sticker, printed with a character, infused with a scent. Nothing goes on the skin. Nothing gets swallowed.

My honest first reaction was that this was a cute sticker and forty dollars I didn't need to spend. I bought them anyway, mostly because the sleep one had a little moon character on it and I knew my son would like her.

Here is the part I didn't expect. I put the pouch on the counter and let him open it. He looked at the sheet for a long time, the way he looks at a menu he can't read yet, and then he peeled one off and stuck it on the front of his pajama top, high up near the collar. Then he went and got in bed. Nobody asked him to.

I've thought about this a lot since. For two years, bedtime was a thing that happened to him, announced by me, resisted accordingly. The sticker was the first part of the evening he got to decide. It cost him nothing to say yes to it, and once he'd said yes to that, the rest of it stopped being a fight worth having.

The scent helps, I think, in the way that a smell attached to a routine helps. Our house now smells faintly of lavender from about 7:15 onward, and that smell has come to mean the day is closing. He knows it. I know it. The dog knows it. It's a cue, not a cure, and I've stopped needing it to be more than that.

I can't tell you the exact night it turned, and that's the honest headline of this whole story. There was no dramatic first evening. There was a Tuesday, and then a Wednesday, and at some point a few weeks in I was making coffee and realized I couldn't remember the last time I'd been woken up.

Good nights don't announce themselves. Nobody wakes up and thinks: nothing happened. You only notice the run when you look back and find you stopped keeping score.

What I have now isn't a perfect sleeper. He still has the nights where he's overtired, or wound up from a birthday party, or simply four years old about something in the way four-year-olds are. What I have is a bedtime that starts the same way every night, that he participates in willingly, and that ends before I've lost the entire evening.

That was the whole thing I wanted. It just took me a while to notice I had it.