I put a speaker under my pillow for 30 nights. Here’s what actually happened.

There is a drawer beside my bed that I would rather you didn’t open. Two kinds of melatonin. A tub of magnesium powder. A lavender pillow spray, and then a second lavender pillow spray because the first one wasn’t working. An eye mask still in its cellophane. A book about circadian rhythms with the bookmark on page thirty-one. I am fifty-six and I have been managing my sleep for the better part of a decade, and that drawer is what managing looks like.

Everything in it worked for about a week.

The earbuds lasted longer than most. I slept in them for most of one winter, and every morning I’d find one of them somewhere down in the sheets and the other still going, and by about Thursday my ear would ache in a very specific way. My husband could hear the tinny edge of whatever I had on. He never said anything about it. He didn’t need to — he was awake.

He falls asleep the way other people close a door. I’m the one still there at eleven-forty, rearranging a pillow that does not need rearranging.

The last thing I tried before this was a sleep app. One of the big ones, two years of it, billed annually so I never really looked at what I was paying. Rain on a tin roof. It was lovely for about twelve nights. Then one evening I realised I could not hear it any more — not that it had stopped, but that I had stopped hearing it. It had become furniture.

So when a woman in my walking group mentioned a speaker that lives under her pillow, I ordered one mostly to stop thinking about it. What follows is thirty nights.

It is a flat panel about the length of a forearm and roughly as thick as a pencil laid on its side, in a soft sleeve you can wash. It does not go in the pillowcase. It goes flat under the pillow, then the pillow goes on top of it, and then you forget the whole arrangement exists.

Set-up was: charge it, slide it under, open the app once. I chose rain, because I always choose rain.

Two things about night one. The first is that I could hear it perfectly — through a pillow and a good deal of feather — at a volume that felt like it was happening inside my own head rather than in the room. The second is that when I asked him in the morning, he said he had heard nothing. Not a hum. Nothing.

The obvious question, at my age, is what it knows about me. Nothing a pillow hasn’t told it. It doesn’t record. What it has is movement — how still you are, and the moment you begin to wake — and it turns out that is enough to tell when a sound has stopped doing its job.

Sleep-wise, though? Night one was an ordinary night. I fell asleep at roughly the time I always fall asleep. I want to be honest about that, because the advertising never is.

This is the night I noticed I hadn’t done anything.

I put my head down and something was already going, and it wasn’t the rain. It was the low, slightly grainy one I’d left on by accident on the Tuesday — the Tuesday I went out quickly and don’t remember the end of.

I hadn’t rated it. I hadn’t filled anything in. There is no little survey in the morning asking me to score my night out of five. It had simply noticed, and then it had chosen.

Fourteen is roughly where every app before this went quiet on me, and I had been half-waiting for it.

It didn’t happen, and I think the reason is boring: it hadn’t played me the same fortnight twice. Some nights a low brown noise. One night a story read very slowly by a Scottish woman, which I would never in my life have picked and now ask for by name.

The three-o’clock wake still comes. I want to be very clear about that, because I have been sold things before: nothing here stopped me waking at three. What changed is what I wake into. It isn’t silence, and it isn’t the same thing that was playing when I went down — it has already moved on to something else. Most nights now I don’t remember getting back to sleep, which I suppose is the whole point.

At the end of the month something turned up that I did not expect: a list.

Not a graph with a lot of confident lines on it — it doesn’t claim to know more than it does, and I appreciated that it didn’t pretend. Just every sound it had given me over thirty nights, ranked by how those nights had actually gone. Two I’d have sworn by were near the bottom. The Scottish woman was near the top. Rain — my rain, the rain I have chosen every night for ten years — sat somewhere in the middle.

I have been choosing wrong for a decade. Politely, quietly, on my own, in the dark.

So let me do it properly. There are two real prices here, and the second is the interesting one.

Free shipping. It renews at A$99 a year after that — the Club only. You never pay for the speaker again, and it stays yours whether you stay or not. There’s a monthly way in at A$24.90 if a year feels like a lot. Two people, two speakers, learning each of you separately, is A$322 for the first year.

The A$179 is the first run — two hundred units — and after those it goes to A$199. I mention it because it’s the only piece of urgency in this article, and I’d rather it be a true one.

Forty-nine cents a night is less than the melatonin. And the melatonin never learned anything.

No. On night one I had a drawer full of evidence that nothing works, and a husband asleep beside me who has never once had to try.

What I’d say now is narrower than the advertising, and truer for it. It did not fix my sleep. It changed what was happening while I slept, every few nights, without my asking, for thirty nights running. That is a different thing, and it’s the thing the drawer could never do — nothing in that drawer ever learned a single thing about me.