# NextSense

> NextSense is a Mountain View neurotechnology company selling Smartbuds, wireless earbuds with in-ear EEG sensors. They measure brain activity during sleep and use timed sound to try to support slow-wave sleep; the accompanying app also offers focus and relaxation experiences. The company traces its origins to research at Alphabet's X and continues to work with clinical researchers on ear EEG.

- **Founded:** 2020
- **Headquarters:** Mountain View, United States
- **Founders:** Jonathan Berent (Founder and CEO)
- **Products:** NextSense Smartbuds, NextSense app and Focus Mode, Ear EEG research platform
- **Notable:** A 2024, company-sponsored feasibility study in 20 patients found blinded reviewers detected 86.4% of focal seizures identified by standard EEG methods from ear EEG recordings., Closed a $16 million Series A announced in November 2025., Launched Smartbuds for consumers in February 2026.

## Products & services

- **NextSense Smartbuds** — Wireless EEG earbuds with six dry-contact electrodes, sleep-stage tracking, EEG-guided sound, standard audio playback and an iOS companion app; listed at $299 in September 2026.
- **NextSense app and Focus Mode** — Sleep readouts, soundscapes and timed focus sessions with adaptive audio; Focus Mode is included with Smartbuds.
- **Ear EEG research platform** — Ear-worn EEG devices and research workflows used in studies of seizures, sleep and cognition.

## Achievements

- A 2024, company-sponsored feasibility study in 20 patients found blinded reviewers detected 86.4% of focal seizures identified by standard EEG methods from ear EEG recordings.
- Closed a $16 million Series A announced in November 2025.
- Launched Smartbuds for consumers in February 2026.

## Latest updates

- **2026-09** — NextSense's press page listed a September 2026 Men's Health feature on wearing its earbuds overnight.
- **2026-07** — Founder Jonathan Berent discussed the Google X spinout and sleep strategy on the Neural Implant podcast.
- **2026-05** — A paper on a related in-ear EEG system for sleep and daytime sleepiness appeared in Bioelectronic Medicine.
- **2026-02** — Smartbuds launched for U.S. consumers.
- **2025-11** — Announced $16 million Series A led by Ascension Ventures.

## Links

- Website: https://nextsense.io/
- LinkedIn: https://www.linkedin.com/company/nextsense-inc/
- Instagram: https://www.instagram.com/nextsenseofficial/
- TikTok: https://www.tiktok.com/@nextsenseofficial

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Profile page: https://yespress.io/nextsense
Published by YesPress — https://yespress.io
Last updated: 2026-09-28