Slept through for the first time in months. The rain track sounds like a tin roof in a real storm, not the 15-second clip my old machine kept restarting. Took the phone off my nightstand the same night.

Lena M.Verified Buyer

Rated 4.7 Excellent - Trusted By 14,000+

NimbusRest^™Rain Sound Machine For Sleeping

Name: NimbusRest
Brand: Calvedon
SKU: US91986874
Price: 99.99 USD
Availability: InStock

$99.99

$199.99

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Blocks speech so nothing carries past your door
Real fan tone your brain tunes out fast
Tactile dial with zero glowing screen
Nothing to install, pair, or subscribe to

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Lena M.Verified Buyer

Plug into any USB-C port — wall, laptop, or power bank, no batteries
Twist the knob to a speech-frequency tone tuned across 200-5000 Hz
Place it near the door facing outward, where sound leaks out of the room
Dial volume to about 1-3 decibels above normal talking, roughly 42-48 dBA
Words blur into steady hum before they reach the hallway or waiting room

NimbusRest sound masking unit
USB-C cable (4 ft)
USB-C wall adapter (US plug)
Travel pouch for a desk drawer or bag
Quick-start card (1 page, 5 steps)

We offer free shipping on orders over $150. Once your order is dispatched, the estimated delivery time is 7 to 21 business days depending on your location — tracking is emailed as soon as it ships.

Changed your mind? You can return your product within 90 days of delivery for a refund — see our Returns page for the full policy.

Official Authorized Retailer

This product is not available on Amazon or eBay. You are purchasing directly from Calvedon, the only authorized seller — which means full warranty, verified authenticity, and dedicated customer support. Beware of counterfeit listings on third-party marketplaces.

Built To Solve The Privacy Problem Thin Office Walls Create

Speech-Frequency Masking Tone

Tuned across 200 to 5000 Hz, the range where speech lives, so words blur into hum before they reach the hallway.

Non-Looping Natural Sound Engine

No 15-second seam for the brain to latch onto. Clients and coworkers stop noticing it within minutes.

Memory-Saving Tactile Timer Knob

Dial in your level once between sessions. No backlit menu, no re-setting it before every client walks in.

USB-C Desktop Build For Any Room

Palm-sized and USB-C powered. Place it by the door, in the hallway, or above the ceiling tile.

What our 14,000+ Customers say

Based On Real and Honest Experiences

For what you get — 30 non-looping tracks, a real speaker driver, USB-C power, no subscription — this is absurdly well priced. I compared four other machines before buying, and the rest either had a paywall or fan-only.

Ann-Marie R., FL· Verified Buyer

My old machine was buzzy and honestly kind of shitty, clients even commented on it. NimbusRest just fills the room with a steady tone and nobody in my office has mentioned it since.

Marcus T., TX· Verified Buyer

Coworkers ten feet away used to break my focus constantly in our open floor plan. NimbusRest on my desk blurs their calls into background hum and I actually get through a workday now.

Priya S., CA· Verified Buyer

I run a small therapy practice with paper-thin walls and clients used to hear everything from the waiting room. NimbusRest by the door fixed that in one week. Sessions finally feel private.

Lena M., NY· Verified Buyer

Frequently Asked Questions

+212 expertsreviewed it

Placement matters more than the machine. Set it near the door facing out, dial to just above talking volume, and speech blurs into hum before it reaches the hallway or waiting room.

Aim for about 1 to 3 decibels above your normal talking volume, roughly 42-48 dBA. Much lower and words stay clear; much louder and the sound itself becomes the distraction.

For all-day office use, yes. Apps and cheap speakers loop every 15 seconds and the brain locks onto the seam. This engine never repeats, so clients stop noticing it fast.

One unit covers a standard office or therapy room near the door. For a waiting room plus hallway, add a second unit at the leak point for full coverage.

At the right level it reads as gentle background hum, not noise. Most people stop consciously hearing it within a few minutes, the same way they tune out a real fan.

Plain white noise is flat across all frequencies. This tone concentrates energy in the 200-5000 Hz speech range, the exact band where words become intelligible outside your door.

Yes. The build is rated for years of continuous daily runtime, the kind of workhorse use therapists and office managers report from quality units since 2017.

None of those. Plug into any USB-C port and twist the knob. The full sound library lives onboard, so it works the same in a shared suite or a new office with no setup.

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NimbusRest^™Rain Sound Machine For Sleeping