Muse S Athena, the world’s first consumer device to integrate EEG and fNIRS advanced sensor technologies, has quickly emerged as Muse’s most sought-after product. Since its launch, it has sold out multiple times, earning adoption from both individual consumers and researchers around the globe. Building on this momentum, Interaxon Inc., the company behind Muse, today announced two major additions to its AI sleep platform: AI Coach and Deep Sleep Stimulation. With Smart Alarm and Smart Nap features coming soon, the platform now offers end-to-end sleep support—helping users optimize their day, enhance night-time rest, wake more naturally, and recharge effectively during the day.
Sleep, by Design: Support Across the Full Sleep Cycle
AI Coach: While many are familiar with wearable metrics like steps or heart rate, interpreting brainwave data has remained largely inaccessible. Muse’s AI Coach, named Enso, bridges this gap. Trained on individual brain and sleep patterns and informed by expert knowledge, Enso translates complex neural signals into plain language, highlights what matters most, and delivers actionable coaching. By making brain data approachable, AI Coach empowers users to develop healthier sleep habits, reduce stress, sharpen focus, and fully leverage the potential of the Muse headband.
Deep Sleep Stimulation: Building on Muse’s Digital Sleeping Pills™ feature—which eases users into sleep—Deep Sleep Stimulation adds whisper-quiet, EEG-timed audio cues, such as pink noise, during deep sleep stages. These cues are synchronized with the brain’s slow-wave activity, a critical phase for memory consolidation, recovery, and long-term brain health. If the system detects signs of sleep disturbance, cues automatically pause, ensuring rest is uninterrupted. The result is a science-backed intervention that is both soothing and precise, reinforcing deep sleep without disruption.
Smart Alarm + Smart Nap: These upcoming brain-aware features adjust dynamically to the user’s sleep cycle. Smart Alarm identifies the lightest point in the final sleep cycle and initiates a gentle wake sequence, helping users rise with reduced grogginess and enhanced clarity. Smart Nap applies the same intelligence to short daytime rest periods, ensuring users wake at the optimal moment to recharge with renewed focus and energy.
“Nearly half of Muse S customers use our device specifically to understand and improve their sleep,” said Nadia Kumentas, Chief Marketing Officer. “Our Digital Sleeping Pills™ feature has already helped thousands ease into restorative sleep. Now, with AI Coach, Deep Sleep Stimulation, and Smart Alarm with Smart Nap, we’re evolving from passive tracking to intelligent, full-cycle support—transforming sleep into something users can actively shape rather than just observe.”
From Tracking to Intervention: How Muse Closes the Gap
Muse is doubling down on interventions, moving beyond simple sleep tracking. Central to this approach is the Foundational Brain Model (FBM), a transformer-based AI trained on over one billion minutes of EEG data from millions of sessions. Much like GPT models interpret human language, FBM learns the “language” of neural signals, converting them into actionable insights. This allows Muse to interpret brain activity with clinical-grade accuracy even in real-world, noisy environments—capabilities that wrist or finger wearables cannot match.
The AI platform underpins a closed-loop system powering every feature: plain-language guidance via AI Coach, EEG-timed audio cues in Deep Sleep Stimulation, and intelligent wake and nap timing with Smart Alarm and Smart Nap. Adaptive safeguards ensure that all cues remain subtle, pausing automatically if sleep appears unstable, so users remain undisturbed.
Practical Impacts: Consumers, Researchers, and Clinicians
For consumers: Muse now delivers intelligent sleep support across the full cycle—from easing sleep onset to reinforcing deep sleep and waking users at the optimal moment. Each intervention adjusts in real time based on the user’s unique brain signals, helping to foster healthier sleep habits and improve restorative sleep quality over time.
For researchers: Muse S Athena provides multi-night, real-world EEG data with near-PSG fidelity. Deep Sleep Stimulation allows investigators to measure the effects of timed audio cues on slow-wave activity with precision previously limited to laboratory studies. This capability enables decentralized trials, tracking of stimulation outcomes, and testing of innovative protocols across diverse populations in real-world settings.
For clinicians: Muse provides early visibility into sleep-linked risks through precise arousal tracking, logging wake times and sleep phases. This data can support downstream analysis of heart rate variability (HRV), mood, and fatigue, bringing raw neural and physiological data closer to actionable clinical decision-making.
Why Sleep Matters Now: Hidden Vital Signs
“Your brain is already working to protect your health while you sleep. With AI, we can finally listen and take action,” said Jean-Michel Fournier, Chief Executive Officer of Interaxon. “At Muse, sleep isn’t something we just measure—it’s something we can turn into medicine.”
Poor sleep has been linked to memory decline, chronic disease, and long-term brain deterioration. Deep sleep, the most restorative stage, remains elusive for many. Less well recognized is that sleep carries vital neural, cardiovascular, and respiratory signals—early warnings that often appear before clinical symptoms. By enabling millions of nights of real-world sleep monitoring, Muse is transforming sleep from a private, often overlooked behavior into a critical frontier of preventive health.
Technical Foundations: The Muse S Athena Advantage
Muse S Athena combines EEG and fNIRS sensors to capture both electrical and blood-flow brain signals, providing a comprehensive view of neural activity. The device’s advanced sensors, paired with FBM-powered AI, deliver insights with unprecedented resolution. Unlike traditional wearables, Muse measures the brain’s electrical activity directly, enabling interventions precisely tuned to individual sleep stages.
The AI Coach interprets these signals, delivering personalized, actionable guidance. Deep Sleep Stimulation enhances slow-wave activity through EEG-synced audio cues, and the upcoming Smart Alarm and Smart Nap use the same intelligence to optimize wakefulness. This combination of direct brain measurement and AI-driven intervention marks a significant leap beyond conventional sleep-tracking devices.
Availability and Rollout
Muse is rolling out its new AI sleep features in stages:
- AI Coach (Premium): November 2025 — available for Muse 2 and Muse S Athena
- Deep Sleep Stimulation (Free): December 2025 — Athena only
- Smart Alarm & Smart Nap (Premium): Early 2026 — Athena subscribers
These staged rollouts allow users to experience the benefits progressively while ensuring each feature is fully optimized for performance and comfort.
The Future of Sleep and Brain Health
By combining direct brain measurement with AI-driven, closed-loop interventions, Muse S Athena is redefining what consumer sleep technology can achieve. It is not merely tracking sleep—it is actively shaping it. From reducing stress and improving focus to supporting memory consolidation and overall brain health, Muse empowers users to harness sleep as a tool for well-being.
As the device continues to evolve, Muse is positioned to lead a new era of preventive brain health. Millions of nights of data collected from real-world use will inform future enhancements, enabling more sophisticated interventions and increasingly personalized guidance. This is a shift from reactive sleep tracking to proactive sleep optimization—transforming sleep into a measurable, manageable, and actionable aspect of daily health.
“Sleep is the cornerstone of brain health, and Muse is giving users the tools to take control,” added Fournier. “By combining neuroscience, AI, and wearable technology, we’re moving from observation to intervention, making restorative sleep achievable for everyone.”
With its combination of EEG and fNIRS technology, advanced AI, and real-time adaptive features, Muse S Athena is at the forefront of consumer sleep devices. Its full-cycle, brain-aware interventions set a new standard for personalized sleep support, offering benefits for consumers, researchers, and clinicians alike. By transforming how sleep is monitored, understood, and optimized, Muse S Athena is making restorative sleep—and the brain health it supports—more accessible than ever.
