The science of sleep,
demystified.
Research, insights, and practical guides from the team building the future of rest.
Why Deep Sleep Is the Most Important Stage — and How to Get More of It
Most people know they need 8 hours of sleep. Few know that the quality of those hours — specifically how much time you spend in slow-wave deep sleep — matters far more than the total number. Here's what the research says, and what you can do about it.
All Articles
15 articles across Sleep Science, Neurotechnology, Guides & more
What Is Transcranial Stimulation — and Is It Safe?
A plain-language breakdown of how gentle electrical brain stimulation works, what the clinical literature shows, and why Dreamz uses it to improve sleep.
The Racing Thoughts Problem: Why Your Brain Won't Switch Off at Night
Hyperarousal at bedtime isn't a willpower failure — it's a neurological state. Understanding it is the first step to solving it.
What One Week of Poor Sleep Does to Your Brain
Memory, emotion, decision-making, immune function — sleep deprivation degrades them all. The research is stark, and most people are living it.
A Beginner's Guide to Sleep Stages: Light, Deep, and REM Explained
Sleep is not a single state. Understanding the four stages — and what each does for your body and mind — changes how you think about rest entirely.
How to Build a Sleep Routine That Actually Works
Consistency beats duration. The science-backed habits that help your brain reliably shift into sleep mode — and the common mistakes that undermine them.
Sleep and Memory: Why What You Learn During the Day Gets Locked In at Night
During deep sleep your brain replays the day's experiences and transfers them to long-term memory. Disrupting this process has consequences that go far beyond feeling tired.
Why Sleep Medication Can Disrupt Sleep Architecture
Sedation is not the same as sleep. Understanding how common sleep medications suppress REM and deep sleep — and why neuromodulation offers a fundamentally different approach.
What Is Closed-Loop Neurostimulation and Why It Matters for Sleep?
Open-loop systems deliver fixed signals regardless of brain state. Closed-loop systems listen first, then respond. The difference changes everything about what's possible in sleep technology.
The Science of Quieting Mental Noise at Night
Racing thoughts at bedtime are not a willpower problem — they're a state of cortical hyperarousal with measurable neural signatures. Here's what's happening and how to change it.
Deep Sleep vs REM: Why Both Matter for Peak Performance
Memory consolidation, emotional regulation, metabolic clearance, and cognitive sharpness each depend on different sleep stages. A guide to why the full architecture of sleep matters.
Reinforcement Learning for Personalized Sleep Optimization
State, action, reward, repeat. How machine learning allows a sleep device to stop following fixed protocols and start discovering what actually works for your specific brain.
Why Most Sleep Devices Only Track — and Don't Improve
Passive trackers tell you how badly you slept. Behavioral apps give you suggestions. Neither changes your brain. Here's what separates monitoring from active neuromodulation.
The Engineering Behind a Comfortable Neurotechnology Mask
Weight distribution, PCB encapsulation, electrode routing, light-blocking — building a device worn overnight against the face demands a different kind of hardware thinking entirely.
Can Improving HRV Improve Your Sleep?
Heart rate variability reflects the balance of your autonomic nervous system. Higher HRV at night means deeper relaxation, faster sleep onset — and emerging research shows tVNS can move both needles.
The Future of Sleep: From Static Protocols to Adaptive Neurotechnology
The next decade of sleep science isn't about better tracking or stricter routines — it's about systems that learn, adapt, and respond to each brain individually, every night.