The Complete Guide to Unboxing, Setup, Features, Sleep Modes, and Everyday Use

Sleepbuds® 2 were designed for one purpose: helping you sleep better in the real world.

Unlike traditional earbuds, Sleepbuds 2 are purpose-built for sleep, combining ultra-small comfort, precision-engineered noise masking, intelligent sleep features, and all-night battery life into a system designed to help you fall asleep faster, stay asleep longer, and wake up more restored.

Whether you’re new to Sleepbuds or upgrading from a previous generation, this guide walks through everything you need to know, from unboxing and onboarding to customizing your perfect sleep setup.

What Are Sleepbuds 2?

Sleepbuds 2 are ultra-small wireless earbuds engineered specifically for sleep. They use precision noise masking technology, not active noise cancellation, to help reduce nighttime disruptions like:

• Snoring

• City noise

• Roommates

• Barking dogs

• Hotel noise

• Travel environments

• Thin apartment walls

You can also stream:

• Podcasts

• Audiobooks

• Music

• Meditation apps

• TV audio

…and then automatically transition into masking sounds once you fall asleep.

Sleepbuds 2 are designed for:

• Side sleepers

• Light sleepers

• Travelers

• Shift workers

• Shared bedrooms

• Anyone struggling with nighttime noise

1. Unboxing Sleepbuds 2

Inside the box, you’ll find:

• Sleepbuds 2

• Smart Charging Case

• USB-C charging cable

• Four sizes of silicone ear tips

• Quick Start Guide

Your Sleepbuds arrive already docked inside the Smart Case and are marked Left and Right for easy placement.

The included Smart Case is more than just a charger. It:

• Charges your Sleepbuds

• Stores 2–3 additional charges

• Helps connect Sleepbuds to the Ozlo app

• Includes a button that supports bedside, phone-free controls

• Includes environmental sensors that track room conditions like light, temperature, and noise throughout the night

We recommend keeping the Smart Case nearby while sleeping, ideally on your nightstand.

2. Finding the Right Fit

Comfort is everything when it comes to sleep earbuds.

That’s why Sleepbuds 2 include four sizes of patented silicone ear tips and secure-fit wings engineered specifically for overnight wear.

Your Sleepbuds come pre-installed with Size 2 tips, but many users benefit from trying multiple sizes.

How to Insert Sleepbuds Properly

1. Slide the Sleepbud gently into your ear

2. Twist downward slightly

3. Tuck the wing comfortably beneath your ear ridge

You should never force the Sleepbud deeply into your ear canal.

The wing system is what keeps Sleepbuds secure throughout the night — even for side sleepers.

Watch the video

Signs You Need a Different Size

Try a larger size if:

• The Sleepbud feels loose

• It shifts during the night

• Masking performance feels weak

Try a smaller size if:

• The wing feels pinched

• The tip feels tight

• The wing crumples flat against your ear

Many users even wear different sizes in each ear.

Finding the right fit is one of the biggest contributors to all-night comfort and effective noise masking.

3. Onboarding & Pairing Sleepbuds 2

Getting started takes just a few minutes.

Step 1: Download the Ozlo Sleep App

Download the Ozlo Sleep app on your iPhone or Android device.

Step 2: Open the Smart Case

When you open the case lid, the middle light activates and Sleepbuds begin pairing mode automatically.

Step 3: Place Sleepbuds in Your Ears

Remove both Sleepbuds from the case and insert them. Sleepbuds are connected and ready to be removed from the case as soon as you see the green light turn on in the center of your Smart Case.

The app will search for your Sleepbuds and connect automatically.

Once connected, you’ll see a confirmation message inside the app.

4. Smart Case Tour

The Smart Case is the command center for your Sleepbuds experience.

It:

• Charges the Sleepbuds

• Extends battery life with 2-3 extra charges

• Includes environmental sensors

• Provides bedside controls through the Smart Case Button

Understanding the LEDs

Middle Light

• Solid green = battery above 20%

• Flashing amber = charging

• Solid amber = battery below 20%

Charging Indicators

A blinking light beside each Sleepbud confirms charging is active.

You can also view charging status directly in the Ozlo app.

Watch the video

5. The Smart Case Button

One of the biggest upgrades in Sleepbuds 2 is the new Smart Case Button.

Designed specifically for nighttime use, it allows simple bedside control without grabbing your phone.

What the Smart Case Button Can Do

With a single press, you can:

• Start or pause Sleep Sounds

• Snooze alarms

Press and Hold Controls

Pressing and holding unlocks additional controls, including:

• Starting your Sleep Sounds

• Entering pairing mode

The goal is simple:
No phone or screens. Less friction. Faster return to sleep.

Watch the video

6. App Tour: Understanding the Ozlo Sleep App

The Ozlo app is where Sleepbuds become deeply personalized.

From the home screen, you can access:

• Sleep Modes

• Sleep Shield

• Audio Tuning

• Alarms

• Timers

• Local Sounds

• Sleep Patterns

• Environmental Insights

7. Sleep Modes Explained

Sleep Modes control exactly how and when your Sleep Sounds play throughout the night.

Simple Mode

Best for:

• Phone-free sleep

• Travelers

• Minimal distractions

Sleep Sounds begin instantly from memory stored directly on your Sleepbuds.
Bluetooth streaming is disabled.

Auto Mode

Best for:

• Podcast sleepers

• Audiobook listeners

• Music before bed

When streaming audio stops, your Sleep Sound automatically begins.

Sensing Mode

Best for:

• Hands-free sleep transitions

Sleepbuds detect when you fall asleep and automatically transition into masking sounds.

Time Delay Mode

Best for:

• Podcast sleepers

• Custom routines

Set a timer up to two hours before Sleep Sounds begin automatically.

Manual Mode

Best for:

• Maximum control

Start Sleep Sounds manually using the Smart Case Button or app whenever you’re ready.

8. Sleep Shield

Sleep Shield is designed to protect your sleep from all digital interruptions.

When enabled, it blocks:

• Incoming calls

• Notifications

• Alerts

• Bluetooth interruptions

When Sleep Shield is enabled, audio from your phone won't interrupt your Sleep Sound. For example, if you're scrolling through YouTube or Instagram before bed and a video starts playing with the sound on, the audio will play through your phone's speaker instead of your Sleepbuds, allowing your Sleep Sound to continue uninterrupted.

Sleep Shield is designed for nights when you want a completely distraction-free sleep experience, helping prevent late-night scrolling or unexpected audio from disrupting your rest.

When Sleep Shield is disabled, streaming audio from your phone can override your Sleep Sound and play through your Sleepbuds.

9. Personalized Audio Tuning

Sleepbuds 2 introduce professionally tuned listening presets designed for different environments and content types.

Presets Include:

• Balanced

• Spoken Word

• Focus

• Airplane

Whether you’re listening to podcasts in bed or trying to soften cabin noise during a flight, Audio Tuning helps optimize the experience.

10. Sleep Sounds & Soundscapes

Sleepbuds 2 include over 50 Sleep Sounds and Soundscapes.

Masking Sounds

Engineered specifically to help reduce:

• Snoring

• Traffic

• Voices

• Roommates

• Dogs barking

Soundscapes

Immersive environments like:

• Rainfall

• Ocean waves

• Train rides

• Fire crackling

Designed to help your mind unwind more naturally.

You can store up to:

• 10 Sleep Sounds

• 3 alarm sounds directly on your Sleepbuds

11. Private In-Ear Alarm

Instead of waking the whole room, Sleepbuds gently wake only you.

Ideal for:

• Couples

• Shift workers

• Parents

• Shared hotel rooms

• Early flights

You can:

• Customize volume

• Choose alarm sounds

• Set repeating schedules

• Snooze directly from the Smart Case Button

12. Sleep Patterns & Environmental Tracking

Sleepbuds 2 and the Smart Case work together to quietly monitor both your sleep and bedroom environment throughout the night.

Track:

• Sleep duration

• Sleep consistency

• Sleep efficiency

• Wake events

• Environmental disruptions

Smart Case Environmental Sensors Monitor:

• Light

• Temperature

• Noise

Over time, Sleep Patterns helps reveal:

• What improves your sleep

• What disrupts it

• Trends in bedtime consistency

• Sleep efficiency changes

The more you use Sleepbuds, the smarter and more personalized your sleep insights become.

Watch the video

13. Battery Life & Charging

Sleepbuds 2 feature:

• Up to 14 hours of battery life

• 2–3 additional charges from the Smart Case

To charge:

1. Open the case

2. Hover the Sleepbud slightly above its dock

3. Let it snap into place magnetically

Docking every morning helps ensure your Sleepbuds are always ready for the next night.

14. Care & Cleaning

Like any wearable product, regular cleaning helps keep Sleepbuds performing comfortably and reliably.

Best Practices

• Wipe Sleepbuds regularly with a dry, soft cloth

• Remove ear tips occasionally to clean underneath

• Keep charging contacts free of debris

• Store Sleepbuds inside the Smart Case when not in use

• Avoid excessive moisture exposure

Tip Maintenance

Ear tips are designed for nightly wear, but replacing them periodically can help maintain:

• Comfort

• Hygiene

• Secure fit

• Optimal masking performance

Smart Case Care

Keep the Smart Case:

• Dry

• Dust-free

• Close to your bed during sleep tracking

• Charged regularly for best performance

Watch the video

Designed for Better Sleep

Most earbuds were designed for:

• Music

• Calls

• Workouts

• Daytime use

Sleepbuds 2 were designed entirely around sleep.

From ultra-small comfort and personalized Sleep Modes to intelligent masking sounds and environmental insights, every detail was engineered to disappear into the background — so you can focus on what matters most:

A better night’s sleep.