Key Investor Signals
Raised €2M to develop brainwave-guided sleep technology
Strategic angel investors backed the April 2025 round to advance product development, clinical validation and integration of the stimulation platform into consumer devices.
Demonstrated stronger slow-wave activity in a headband study
A 2025 preprint found higher slow-wave power with sound stimulation than in silent control periods. The single-night study enrolled 26 healthy adults; 14 remained in the brainwave-power analysis.
Secured a US patent for predictive brain stimulation
US patent 12,310,739 was granted in May 2025, naming Deep Sleep Technologies and the University of Amsterdam as assignees for technology that predicts and influences biological signals.
Team
Lucia Talamini
CSO and Founder
- Led the University of Amsterdam’s Memory and Sleep research group, studying how sleep shapes memory and brain function.
- Worked as a team leader and cognition specialist in schizophrenia drug discovery at Johnson & Johnson from 2002 to 2004.
- Developed neural-network models of memory and cognitive dysfunction at the University of Amsterdam after joining in 1999.
Marc Feitsma
CEO and Co-founder
- Co-founded Dutch Solar Power and served as director of sales from 2017 to 2022, serving business and agricultural customers.
- Co-founded Time to Momo and led growth from 2020 to 2023, building a city-travel business around locally curated content.
- Worked in account management and senior management at KPN from 1998 to 2005, including business sales and marketing leadership.
Jeffrey Hoegen
CFO and Co-founder
- Served as CFO of recruitment-software company Harver from 2016 to 2021, bringing finance leadership in a software business.
- Co-founded recruitment-software company Carv and became its CFO in 2022, bringing experience in building a software business.
- Led regional finance at mobile-analytics company App Annie from 2014 to 2016, covering Europe, the Middle East, Africa and Asia-Pacific.
Product
The platform combines EEG brainwave recordings with closed-loop neurostimulation: software predicts the next part of a sleep rhythm and times a sound pulse to it. A research headband has been tested in the laboratory, with home use and consumer-device integration under development.
Reading sleep brainwaves
Forehead electrodes capture the brain’s electrical activity during sleep. The research setup uses a self-applied EEG headband, giving the software a live signal from which to identify and target slow sleep rhythms.
Timing gentle sound pulses
The algorithm models incoming brainwave signals to predict slow oscillations in real time. It triggers acoustic pulses at a chosen point in each rhythm, adapting to the sleeper without a separate individual calibration session.
Connecting to compatible hardware
The stimulation software connects to compatible EEG hardware. In the research setup, a wireless receiver sends headband recordings to a computer that runs the algorithm and controls acoustic stimulation.
Market Overview
Consumer sleep technology spans passive tracking and devices that actively intervene during sleep. People buy these products to understand poor sleep and seek better rest. Brainwave-guided sound stimulation sits in the active-intervention segment, alongside other non-drug sleep aids sold for home use.
Consumers purchase sleep headbands directly, with some suppliers adding subscription services. Device brands are also potential buyers of stimulation software for integration into their own hardware. The category combines one-off hardware purchases with recurring digital services for sleep support.
Estimated global sleep-tech device revenue in 2025, covering tracking and sleep-enhancement products.
In a June 2025 online survey of 2,007 US adults, nearly half had used a sleep-tracking device or app.
Elemind lists its brainwave-guided acoustic sleep headband at $399 in its US online store.
A 2025 review estimated clinically relevant insomnia in adults aged 20+, using UN 2022 population data.
Comparable Outcomes
Dreem
Dreem developed at-home EEG headbands for sleep monitoring and studied closed-loop sound stimulation to enhance slow sleep waves. Its later clinical hardware supported sleep assessments in drug trials. Beacon Biosignals completed the acquisition of Dreem’s research and development business in July 2023, combining the headband technology with its EEG analytics platform.
Interested in More Startups Like Deep Sleep Technologies?
Get a curated pipeline of healthcare and life sciences startups aligned with your investment thesis.
Sources
This profile was built from public company materials, ecosystem sources, market references, and professional profiles.