Yogasleep · Formerly Marpac
Best for: Light sleepers who hate digital loops, city apartments, nurseries
The mechanical white noise machine that's been quietly winning since 1962 — a real fan inside a plastic dome, not a speaker looping a recording.
Worth it$48.99 for a real mechanical fan in a dome - no loop point to snap you awake, and the design has survived 60 years unchanged.The Dohm creates white noise the old way: an actual fan spinning inside a two-tone dome. No looping recording, no seams, no compression artifacts. Runs continuously without irritating the ear the way digital speakers can. Yogasleep (formerly Marpac) has sold this machine for 60+ years — cult following among parents and light sleepers. Two speeds. Reliable to the point of boring. 3-year warranty.
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How our 8.9/10 breaks down — rated on the dimensions that matter most for sound machines, from published specifications and third-party test data, not the marketing.
Featured in our guides
Quick verdicts for the sound machines most often considered alongside the Yogasleep Dohm Classic (Marpac Original).
The Wirecutter-picked digital sound machine — 22 unique sounds, non-looping audio, and travel-friendly build.
→ Adults, travelers, light sleepers, city noise masking
The parent-approved sound machine that grew up with millennial families — sound + light + wake-clock in one, controlled from your phone.
→ Parents, nurseries, toddler wake-training
The adult version of Hatch Rest — sunrise alarm, meditation library, and sound machine designed to replace your phone as the bedside anchor.
→ Anti-phone-in-bedroom adults, meditation users, subscription-friendly buyers
Our 60-second sleep score quiz asks 8 questions and recommends the right sleep gear for your goals. Built by sleep engineers. Free, no signup.
Editor's deep dive
The short answer
Yes — sixty years on, the Dohm is still the best pure white-noise machine because it makes real fan noise mechanically instead of looping a recording. No seams, no app, no subscription, nothing to break the spell at 3am.
Light sleepers who can hear a digital loop's seam, apartment dwellers masking neighbor noise, and anyone who wants a sound machine that will still work identically in 2035. Two switches, one knob — the anti-gadget.
Continuous mechanical whoosh with adjustable tone — the reference sound in the category.
There is no loop. That's the whole engineering.
One sound, adjustable in tone only — LectroFan gives you 20 variants.
Mains-only and bulkier than digital micros; fine in a suitcase, not a carry-on pocket.
The Dohm does one thing with total reliability at a fair price. If you want white noise — not an ecosystem — this is the buy-once answer.
Editorial evaluation against the LectroFan Evo and phone white-noise apps on published specs, independent reviews, and owner consensus — scored on our standard rubric. Hands-on testing pending — run nightly for 30 nights, including decibel measurement at pillow distance and a loop-seam listening test at low volume. Reviewer signoff by Dr. Logan Foley, CSSC pending.


Different approaches. Dohm is mechanical (real fan) — no digital loop artifacts, but limited to fan sound. LectroFan is digital with 20+ sound options. If you specifically want the classic 'fan' sound and light-sleeper compatibility, Dohm. For variety, LectroFan.
Yes for most apartments. Maxes at ~65 dB (medium bedroom fan volume). Not enough to mask heavy street traffic or construction — for that, look at Yogasleep's higher-output Dohm UNO or the LectroFan Evo.
No — it's AC only (plugs in). No batteries, no charging. Runs continuously as long as it's plugged in.
Same company. Yogasleep is the rebranded name; Marpac is the legacy brand. Same product, same lifetime engineering.