Sleep Lab · Sound & sleep · 5 min read
Can a white noise machine do a custom sound mix?
Most sleep sound machines hand you a finished preset and call it a night. A custom sound mix is the other design: eight sounds with eight independent volume sliders, so you tune the room once instead of settling for a menu.
What do the sliders actually control?
Eight sound groups, one slider each: rain, forest, ocean, stream, fire, birds, wind, night. Every slider moves independently, and the groups combine — that is the whole design. You are not choosing between presets; you are setting the level of each layer and keeping the ones that earn their place.
In practice most people end up with two or three layers, set low. A mix is a characteristic of the room, not a playlist: it is something the room settles into, and it works best when it is quiet enough that you stop noticing it.
Why not just use presets?
Presets are someone else's idea of rain. The usual complaint in this category is not that a machine has no sounds — it is that the preset is close but one layer wrong: the birds too bright, the stream too busy, the fan too even. With independent sliders the wrong layer has a handle. Turn it down; keep the rest.
What about the flame light?
A wide, low flame-effect glow runs along the base of the unit, below the grille and below eye level, and it dims. It reads as warmth at floor level rather than as a lamp pointed at the bed — the light is for the room, not for your face.
What else is on the front panel?
A timer at 30, 60 or 120 minutes stops it on its own, so nobody has to stay awake to switch it off. Everything works from the panel without an app or an account. Bluetooth 5.3 is there if you want to play your own audio through it. A small humidifier tank is built in and entirely optional — the sound and the light work without water. Power is USB-C.
What are we not going to claim?
We are not going to say it makes anyone sleep, and we are not going to print a decibel figure — we do not publish sound-pressure numbers until we can verify them, and a number printed to look precise would be the least honest line on the page. What a steady mix does is give small sounds something to hide behind; it does not erase a snore beside your ear, and it is not a substitute for a dark room and an hour that has an end.
How does it sit in our own range?
AERÉ Hearth is the mixer of the range — eight sliders, a base flame light, everything on the panel. If a fixed preset has ever been almost right, the sliders are the difference between almost right and yours.
About AERÉ
AERÉ is a sleep and everyday-wellness home brand based in Hangzhou, China, designing twenty things for the hour before bed.
Questions people ask next
Yes. Each of the eight has its own slider, so you set the level of each independently — that is what the sliders are for. Two or three layers, set low, is the usual end point.
It sits at the base, below the grille, and dims to a low ember. It is not a lamp; it is ambience at floor level.
No. Everything is on the front panel. Bluetooth is there if you want to play your own audio.
There is a small tank built in. It is optional — the sound and light work without water.