Ozlo Sleepbuds 2 Noise-Masking Sleep Earbuds
- Masks snoring, traffic and hallway noise with sound tuned for sleep
- Masks snoring, traffic and hallway noise with sound tuned for sleep
- Sits flush at 1.6 g per bud, comfortable for side sleepers
- Stream anything to fall asleep, then it switches to masking sound
- A private in-ear alarm wakes you, not the person next to you
Masking, not cancelling. Why that matters
Noise-cancelling earbuds are built for steady sound, like a plane engine. Night noise is different: a snore, a door, a car passing. Sleepbuds 2 pair a soft silicone seal with sound tuned to reduce how much those sudden peaks stand out. Once the built-in sensor notices you are asleep, they move from whatever you were streaming to masking sound and hold it there until morning.
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Recommended pairing
A few minutes of Mendi in the evening is a calm, focused way to wind down. Then Sleepbuds 2 keep the night quiet once the lights go out.
Ozlo Sleepbuds 2 Noise-Masking Sleep Earbuds
$279.00
The Mendi Headset
$295.62
Description
Sleepbuds 2 are sleep earbuds built for one job: keeping night noise from breaking up your sleep. Each bud weighs 1.6 grams and sits flush in the ear, so you can lie on your side all night, and a soft silicone seal plus tuned masking sound reduce how much a snore, a door or passing traffic stands out.
Fall asleep to your own music, podcast or audiobook. Once a built-in sensor detects you are asleep, they switch to masking sound and keep it steady until morning, then wake you with an alarm only you can hear. The Smart Case charges them and reads the noise, light and temperature in your bedroom, so the Ozlo app can show what shapes your nights over time.
Is this right for you?
You'll get the most from it if
- Noise wakes you: a snoring partner, traffic, or a building that is never fully quiet.
- You sleep on your side and regular earbuds press or fall out.
- You share a bed and want an alarm only you can hear.
- You travel and want the same quiet in a hotel room.
Maybe look elsewhere if
- You want everyday earbuds for calls; there is no microphone in the buds.
- Your phone runs an older system than iOS 17 or Android 12, which the app needs.
Specifications
| Format | Wireless sleep earbuds with a charging Smart Case |
|---|---|
| Weight | 1.6 g per earbud; case 96 g |
| Earbud size | 11 x 17 x 12 mm (H x W x D) |
| Case size | 78 x 78 x 27 mm |
| Battery | Up to 14 hours per charge (streaming and sleep sounds at 50% volume); case holds 2 to 3 extra charges |
| Charging | USB-C, cable included; no wireless charging |
| Noise control | Passive seal from silicone tips plus adaptive noise-masking audio; not active noise cancelling |
| Sleep sounds | 50+ built-in sounds that play without a phone connection |
| Sleep detection | Accelerometer in each bud; switches from streaming to masking once you fall asleep |
| Alarm | Private in-ear alarm, works with Bluetooth turned off |
| Case sensors | Ambient noise, light and temperature |
| Microphone | None in the earbuds; calls are not supported |
| Connectivity | Bluetooth 5.3; streams any Bluetooth audio |
| Range | Keep the earbuds within 10 ft of the Smart Case |
| App | Free Ozlo app, iOS 17+ and Android 12+ |
| Water resistance | IPX4 (dust, sweat, light splashes) |
| In the box | Sleepbuds 2, Smart Case, 4 sizes of silicone tips, USB-C cable |
How to use
- Charge & pairCharge the case over USB-C, then pair with the free Ozlo app
- Find your fitTry the four tip sizes; the right one seals gently and sits flush with your ear
- Wind downStream music, a podcast or an audiobook, or pick one of the built-in sleep sounds
- Through the nightOnce you fall asleep they switch to masking sound on their own
- Wake upSet the in-ear alarm in the app; it still rings with Bluetooth turned off
Shipping & delivery
Free shipping within the United States on every order. Most orders ship within a few business days, and you will receive tracking as soon as your order is on its way. Larger items may ship freight with a delivery appointment.
Warranty & returns
1-year limited warranty.
Not the right fit? You have 60 days from delivery to send it back. Reach out to our team, we will email you a prepaid return label and the right address, and refund you once it arrives. Items need to come back in their original packaging. Prefer to exchange it for something else? We handle that at no extra cost.
Cancel free of charge any time before your order ships. If anything arrives damaged, send us photos of the item, the box and the SKU within 24 hours and we will sort it out for you.
See our Return Policy for full details.
Why it earns a place in the stack. Noise is one of the most common reasons sleep breaks up, and it is rarely in your control: a partner snoring, traffic, a hotel hallway. Sleepbuds 2 sit flush so you can lie on your side, then switch to masking sound once you drift off.
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What sleep experts say
The Ozlo Sleepbuds offer a comfortable, non-pharmacological way to block out disruptive nighttime noise and create a peaceful sleep environment.
Dr. Meredith BroderickNeurologist and Sleep Medicine Physician, Ozlo Medical Advisory Board
The right environment sets the stage for a great night's sleep, and sound is a critically important ingredient in the recipe for sound slumber.
Dr. Rebecca Robbins, PhDAssociate Sleep Scientist, Brigham and Women's Hospital; Ozlo Medical Advisory Board
Frequently Asked Questions
Are these noise-cancelling earbuds?
Can I sleep on my side with them in?
What can I listen to?
Will the alarm wake my partner?
Do I need my phone next to me all night?
How long does the battery last?
Can I take phone calls with them?
How does the sleep tracking work?
Which phones does the app work with?
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Our approach
Every product earns its place.
No single thing changes your biology on its own. What matters is the system, and whether each piece earns its place. Here is how a device makes it into Kove.
01
Start with the evidence
Where there is research behind how something works, we read it. We look at the real mechanism a device relies on, like the wavelength, the frequency, or the dose, and whether the evidence holds up. Substance comes before marketing, and we are honest about how strong that evidence is.
02
Separate mechanism from marketing
A claim is not a mechanism. We check a device's real output against its stated one: does the panel emit the 660 and 850nm it advertises, at the irradiance that makes those numbers matter? The marketing language gets set aside. The measurable spec is what we judge.
03
Verify build and dose
Even a good idea does nothing if the hardware is weak. We confirm the output is consistent, the dose is usable in a real daily routine, and the build holds up over years, because a device only helps if it lasts as long as the habit.
04
Held to one standard
What clears every step earns its place in the system, held to the same standard as everything else. That consistency is what you can count on.
