White noise machines compared: fan, digital or budget

The 4 side by side

Published specs from each maker's listing, read October 2026.

What a sound machine is actually for

A sound machine doesn’t make you sleepy. It raises the background level in the room so that a door, a car or a neighbour’s television rises less above it, which is the effect researchers found when they played broadband sound in a noisy bedroom-like lab. The same body of research, reviewed in 2021, is mixed for quiet rooms, so think of these machines as a fix for a noise problem rather than a general sleep aid. If you are not sure whether noise is your problem, our guide to sleeping with noise helps you decide between blocking and masking.

The four approaches

The fan in a box. The Dohm Classic contains a real fan inside a vented housing; the sound is moving air, not a recording, and no breeze comes out. Twisting the collar changes the tone, and a switch gives two speeds. That’s it — no timer, no app, no light. Because nothing is recorded, there is no loop to notice at 2 am. This simplicity is the point.

The digital box. The LectroFan Classic generates its sounds rather than playing a short clip, offering ten fan sounds and ten noise colours from white to brown. A timer runs in 60-minute steps. Having pink and brown noise matters if white sounds harsh to you; those colours put more energy in the low end, which also suits covering traffic rumble. It runs from USB, so it travels.

The budget box. The Magicteam unit packs twenty sounds, including white, pink and brown noise, fan and rain, with a timer and a memory of the last setting, into a small cube. The trade-off is the speaker: a small driver cannot reproduce deep brown noise as fully as a larger one. If your noise problem is high-pitched — voices, a television — that matters less.

The all-in-one. The Hatch Restore 3 combines a sound machine with a sunrise alarm and reading light, set up and scheduled from a phone app. It suits people who want one routine for the whole night: sound at bedtime, light in the morning. Some of its content sits behind a paid membership, so read what’s included before buying. We look at its wake-up side on the sunrise alarm clocks page.

Who should choose what

If you share a room and want something that just works with one switch, the fan-based machine is the least fiddly. If you’re sensitive to hiss, or want a timer so the sound stops once you’re asleep, choose a digital unit with pink and brown noise. If you are testing whether a dedicated speaker helps at all, the budget unit is the low-risk try. If you’d also use a light alarm, the all-in-one replaces two devices.

Whatever you pick, set it low and place it across the room. Masking works at modest volumes, and you are listening to it for hours. A timer is worth having if you wake easily when sounds change; the sleep timer guide explains why stopping after you fall asleep can be better than running all night.

Try free first

Our own iPhone app plays rain, waves, forest, fire and underwater scenes with separate volumes and a sleep timer, and works offline. If a week with an app on the nightstand fixes the problem, you don’t need a machine. If the phone speaker sounds thin, or notifications keep breaking the sound, that is the moment to buy one.

Questions people ask

Is a white noise machine better than an app?

Not in what it does — both play a steady sound. A machine has a better speaker than most phones, keeps the phone out of the bed, and doesn't stop when a notification arrives. An app costs nothing to try, so start there if the room is only occasionally noisy.

Fan-based or digital?

A real fan can't loop because nothing is recorded, and the sound is soft and broad. Digital machines offer more sounds and timers, and the better ones avoid audible loops. Both mask equally well at the same volume.

How loud should a sound machine be?

Just loud enough to blur the noise you want to cover — you should still be able to talk over it. Put it across the room rather than next to your head.

Are sound machines safe for babies?

This page is about adult bedrooms. For infants, follow your paediatrician's advice on volume and distance; the American Academy of Pediatrics has published guidance on keeping infant sound machines low and away from the cot.