Ozlo, the sleep-focused tech startup founded by former Bose engineers, officially launched its next-generation device this Tuesday. The new Sleepbuds 2 arrive as a significant upgrade to the company’s debut product, specifically targeting performance pain points such as battery longevity, connectivity stability, and audio fidelity. The updated model is priced at $279.
Evolution of a Sleep Platform
This launch marks the most substantial update to Ozlo’s hardware since its inception. It signals the company’s transition from merely continuing the legacy of Bose’s discontinued sleep line to establishing its own independent, comprehensive sleep technology platform.
Ozlo was founded by N.B. Patil, Brian Mulcahey, and Charlie Taylor. These Bose veterans leveraged their deep involvement in the original Sleepbuds program to acquire and license the research and IP necessary to launch their own venture. The initial device, which has reached over 200,000 users, was designed with a low-profile fit—ideal for side sleepers—and featured Bluetooth streaming, passive noise blocking, and sleep tracking.
Upgraded Performance and Battery Life
The Sleepbuds 2 bring several hardware enhancements. Battery life has been boosted to 14 hours, up from the previous 10-hour mark. The redesigned charging case now holds enough power for two to three nights of use and features a new physical button, allowing users to play sleep sounds or snooze alarms without needing to access their smartphone.
Connectivity and Audio Enhancements
Responding to user feedback regarding Bluetooth reliability, Ozlo has redesigned the antenna and extender systems to provide a more stable connection and increased range. Additionally, the audio system now includes a built-in amplifier for superior sound masking. Users can also utilize new personalized sound tuning, offering modes for Spoken Word, Airplane, Focus, and Balanced listening.
Advanced Sleep Insights and AI Future
A new “Sleep Shield” feature automatically blocks incoming calls, alerts, and notifications during the night. Ozlo has also refined its biometrics, with the earbuds tracking breathing and movement, while the charging case monitors environmental factors such as room temperature, light, and ambient sound levels.
Looking ahead, Ozlo aims to leverage AI to provide deeper interpretations of sleep patterns. The company is currently developing an AI “sleep buddy” designed to discuss personalized sleep data with users. For the initial launch, each purchase of the $279 Sleepbuds 2 includes a sleep mask, a travel case, four pairs of silicone ear tips, and a USB-C cable.
While the original Sleepbuds proved to be a comfortable, effective alternative to standard AirPods for noise blocking, many users—including this reviewer—frequently pair the hardware with third-party services like the Calm app. Ozlo previously formalized this user behavior through a partnership with Calm, offering a co-branded case and a one-year subscription to their content library.
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