Noise is a primary enemy of good rest. Whether it is a partner snoring, traffic outside, or a noisy neighbor, sudden sounds can jolt the brain awake. This interruption is significant because sleep deprivation triggers heightened anger and emotional instability the next day. The new Ozlo Sleepbuds aim to solve this problem not by cancelling noise, but by masking it. Created by former Bose engineers who acquired the original technology, these tiny earbuds combine a secure physical seal with soothing background sounds to cover up disturbances. Unlike their predecessors, they also let you stream your own audio, making them a versatile tool for anyone struggling to block out the world at night.
Noise masking works better than cancellation for sleep
Active noise cancellation (ANC) is great for flights or commuting, but it creates silence that can actually make sudden sounds more jarring in a quiet bedroom. Ozlo Sleepbuds use a different approach called noise masking.
The system starts with a passive physical seal. Soft silicone tips fit snugly into the ear canal to block sound waves from entering. Then, the earbuds play a steady, engineered sound—such as white noise, rainfall, or a rushing stream—that covers up the remaining frequencies. This constant audio layer raises the “noise floor,” so your brain does not register a sudden spike in volume, like a car honk or a snore, as a threat. By smoothing out the auditory environment, masking helps the brain stay in deep sleep without interruption.
Streaming and sensors add new utility
The biggest limitation of the original Bose Sleepbuds was that they could only play pre-loaded sounds. Ozlo has removed this barrier. The new Sleepbuds function as standard Bluetooth headphones, allowing you to stream content from any app on your phone. You can listen to a podcast, an audiobook, or theta binaural beats from services like Spotify to help you drift off.
Biometric sensors inside the earbuds detect when you fall asleep. Once the system senses you have dozed off, it can automatically fade out your podcast and switch to your chosen masking sound for the rest of the night. This ensures that spoken words do not wake you up later, while maintaining the protective layer of masking audio until morning.
All-night battery and side-sleeper comfort
Comfort is critical for anything worn in bed. The Sleepbuds are designed to be tiny and flat, sitting flush within the ear so they do not press against the pillow. This low profile makes them suitable even for side sleepers who often find standard earbuds painful.
The battery is built to last a full night of sleep, offering up to 10 hours of continuous playback. The charging case provides several additional charges, bringing the total unplugged runtime to over 40 hours. The case also acts as a base station, handling the Bluetooth connection to your phone to save power on the tiny earbuds themselves. While the hardware focuses on sleep, the case includes sensors to monitor bedroom conditions like light and temperature, giving you a fuller picture of your sleep environment.
What you can do about it
If environmental noise keeps you awake, simple earplugs like the Loop Dream earplugs are a cheap first step. If they are uncomfortable or ineffective, noise masking might be the better solution. Before investing in high-tech sleepbuds, test if steady sound helps you by using a simple white noise machine or a fan in your room. If you need a portable solution or sleep next to a snorer, the Ozlo Sleepbuds offer a verified technology to keep the noise out. As with any sleep aid, establish a consistent wind-down routine to get the best results.
Sources & related information
The Verge – Ozlo Sleepbuds hands-on: Bose wearables sleep tracking – 2024
The tech news outlet reviews the final product, highlighting the successful integration of streaming capabilities and the effective noise-masking technology inherited from Bose.
Ozlo Sleep – Science of Sleep – 2024
The official product page details the difference between noise masking and cancellation, explaining how masking raises the auditory threshold to prevent sleep disruptions.
Mashable – The new co-branded Ozlo Sleepbuds come with a free year of Calm – 2025
Reports on the partnership with the meditation app Calm and confirms the general availability and pricing of the device following its crowdfunding phase.
0 Comments