| Neutral sound that may be a sleep aid |
LA Times Daily |
07 Sep 2025 |
| Aural sleep aid: 2 wds. |
Commuter |
25 Aug 2025 |
| Unvarying background sound |
LA Times Daily |
27 Jan 2025 |
| *Alternative to total silence in the bedroom |
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| One may hear this and get off |
The Telegraph Cryptic |
18 Sep 2024 |
| Sound that has a relatively wide continuous range of frequencies of uniform intensity |
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| It's often played in the dark |
Universal |
21 May 2023 |
| Sound in some sleep apps |
USA Today |
22 Jan 2023 |
| Sound used as a sleep aid |
USA Today |
26 Dec 2022 |
| *Background sound that may be a sleep aid |
LA Times Daily |
27 Sep 2022 |
| Concentration aid |
USA Today |
08 Dec 2020 |
| Knock one back in discerning frequency that one associates with a fan |
Irish Times Crosaire |
24 Aug 2020 |
| Broadcast I see, on with random sound |
The Telegraph Cryptic |
30 Jun 2019 |
| 1985 National Book Award winner about an "airborne toxic event" |
The New Yorker |
07 Jan 2019 |
| Classic DeLillo novel |
Universal |
30 Dec 2017 |
| Classic DeLillo novel |
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| Sleep aid, for some |
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| *Steady, unobtrusive background sound |
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| Audible mask |
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| Audible sleep aid |
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| Audible sleep aid |
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| Neutralizing waves |
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| Unvarying background sound |
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| Unobtrusive sound |
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| Blather from Vanna? |
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| Masking sound |
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