sleep trackers can’t fix what They can’t see.

If you’ve tried the habits, supplements, and gadgets but still deal with ongoing sleep fragmentation or wake up tired, it’s not because you’re doing it wrong — it’s because you’ve been treating sleep symptoms, not sleep systems.

what is sleep OS?

Sleep OS is a tactical recovery framework for people who’ve tried everything else and still don’t have stable, restorative sleep. It identifies and addresses the upstream drivers of unstable sleep — personalizing every step so your path is built for your sleep patterns, with or without testing.

Sleep OS is a self-paced, digital system you access online—without requiring live calls, ongoing membership, or in-person coaching.

From The Longevity Vault, trusted by 18,000+ readers worldwide — created by Kat Fu to help people finally stop waking at 3am and restore deep, uninterrupted sleep

Sleep OS is a tactical recovery framework for people who’ve tried everything else and still don’t have stable, restorative sleep
Person holding alarm clock in bed symbolizing waking up tired despite trying multiple sleep tips and habits — Sleep OS root cause recovery approach.

You’ve probably tried everything:

gone to bed earlier, cut caffeine, kept your room cold, even invested in a high-end sleep tracker. And yet, the pattern doesn’t change — your nights are broken into restless fragments, or you find yourself waking up at 3am and unable to get back to sleep.

Most Sleep Advice Fails to Fix Fragmented Sleep:

That’s because most sleep advice addresses habits and environment, but not the internal systems controlling your ability to fall asleep, stay asleep, and wake restored.

Until you address those systems, progress is temporary.

White alarm clock on dark background symbolizing precise, science-based sleep optimization by Sleep OS creator Kat Fu.
Close-up of hand stopping alarm clock, representing root cause analysis of sleep problems with Sleep OS tactical recovery system.

Built by Kat Fu

Founder of The Longevity Vault, creator of Sleep OS. 15 years of lived sleep problem-solving, including 2 years of continuous Oura tracking and deep integration of clinical sleep science into a real-world framework.

Sleep OS Addresses The gap between sleep tracking & Sleep Transformation.

Sleep OS Addresses The gap between sleep tracking & Sleep Transformation.

It’s the only sleep recovery framework

built to identify and address the underlying systems controlling your ability to fall asleep, stay asleep, and wake restored — personalizing every step so your path matches your exact sleep patterns.

Whether you start with sleep symptoms or lab data

Sleep OS guides you through the right sequence, at the right time, with the right tools. You’ll know exactly what to do next, when and why — no guesswork, no endless trial-and-error.

Sleep OS Addresses The gap between sleep tracking & Sleep Transformation.
Sleep OS Addresses The gap between sleep tracking & Sleep Transformation.

Through a guided process,

you’ll move from identifying your most likely root cause to applying proven, science-backed recovery systems.

Every step is personalized, and for APEX and ELITE members, testing is seamlessly integrated into the process for even greater precision.

Sleep OS gives you

a clear path to fix fragmented sleep, stop 3am wake-ups, and wake restored.

A clear starting point

Know your most likely root cause(s) within hours to days, not months

A proven recovery sequence

Built from clinical sleep science, adapted to your specific pattern

Precision upgrades when you want them

from advanced testing to expert-guided adjustments.

Not sure which Sleep OS tier is right for you?

Here’s the 30-second guide:

Choose ELITE

if you want the Concierge experience — ultra-personalized protocols, 1:1 consultation with the builder Kat Fu, and priority access to all tools and updates. Perfect for long-standing or complex cases.

Elite has Limited Spots.

Choose APEX

If you want to integrate lab testing from day one. Ideal if you’ve had sleep issues for months or years, for several nights a week, can invest in testing, or want full access to the Sleep Mastery™ Dashboard & the Vault Sleep OS Core Index™

Choose CORE

if you want a complete sleep recovery system without lab testing.

Best for infrequent sleep issues.




Sleep OS Addresses The gap between sleep tracking & Sleep Transformation.

01

Start with the Personalization Gateway

Your starting point is the Sleep OS Personalization Gateway — a guided framework that orients you inside Sleep OS and shows you exactly which Root Cause Sleep Intelligence System to begin with, and the order to work through them.

Works for all tiers
No testing or specialist knowledge required
Just follow the prompts.

Sleep OS Addresses The gap between sleep tracking & Sleep Transformation.

02

Follow Your Root Cause Sleep Intel System

Once you’re routed in, you’ll work through a complete, step-by-step recovery system for that specific driver.

CORE users focus on behavior-first protocols.
APEX and ELITE can also access the Sleep Testing Intelligence Center: a complete guide that walks you through:

which tests to consider,
how/when to run them,
how to use the data in the context of sleep, and
how to integrate the right strategies based on your results.

Sleep OS Addresses The gap between sleep tracking & Sleep Transformation.

03

Optimize, Track & Expand

As your sleep stabilizes, you’ll track your results, refine your approach, and expand to other drivers when ready.

APEX and ELITE get the full Sleep Mastery™ Dashboard for long-term improvement.

ELITE adds 1:1 expert consultation to fine-tune your protocols.

Who Is Sleep OS for?

If you regularly wake up in the middle of the night and can’t get back to sleep, or can’t get more than 5-6 hours of sleep — and you’re ready for a systematic way to fix it — Sleep OS was built for you.

Sleep OS is for you if…

★ Your sleep feels light or unrefreshing.
★ You wake up multiple times during the night — whether it’s random awakenings, sleep fragmentation, or the classic 3am wake-up.
★ You sleep enough hours but don’t feel restored in the morning.
★ You want a framework that adapts to your unique sleep patterns, not generic advice.
★ You’re ready to follow a step-by-step process rather than chasing random tips.
★ You care about fixing the biological drivers of unstable sleep, not just masking symptoms.

It’s not for you if…

★ You’re looking for a magic pill or one-night transformation.
★ You want basic sleep tips or supplement lists.
★ You’re not willing to adjust your approach based on what you learn along the way.

Engineering a sleep operation system

why Sleep OS Exists

Sleep OS was created by Kat Fu. founder of The Longevity Vault, a sleep optimization strategist with 15 years of lived experience across nearly every type of sleep disruption.

Over the years, Kat has faced it all — difficulty falling asleep, waking up in the middle of the night, persistent sleep fragmentation, even stretches of waking at 3am like clockwork — and sleeping through but waking unrefreshed.

She’s navigated these challenges while working late hours, training intensively, traveling across time zones, and living in constant “always-on” mode. The final five years of that journey were spent actively working to fix her sleep—testing, refining, and tracking results. For two years, she wore an Oura Ring every single night, comparing scores with how she actually felt.

That process revealed a key truth: even the highest sleep scores can mask underlying instability.

This pushed her deeper into the science of sleep. Kat studied hundreds of published papers, integrated clinical sleep metrics, and cross-referenced them with 15 years of personal data to build a system that works in the lab and in real life.The result is Sleep OS: a personalized, science-backed framework that combines education, tools, and guided decision-making to address the true drivers of unstable sleep. Today, Kat sleeps 8–9 hours a night, wakes without caffeine, and enjoys consistent, restorative energy—results she’s now making possible for others through Sleep OS.

Longevity-Vault-Kat-Fu-Creater-Brains-of-Sleep-OS

Wake Up Rested—Every Single Morning

Sleep OS is opening soon to a limited group of early members. Join now to secure your spot, get priority access to your preferred tier, and start with the exact system your sleep needs.

FAQ

What is Sleep OS (how does Sleep OS work)?

Sleep OS is a self-paced, digital sleep recovery system you access online immediately after payment. Unlike traditional coaching, memberships, or live calls, you don’t need to schedule appointments, take notes, or wait for someone else’s availability.

Everything you need is organized and ready to use—systematic assessments, step-by-step protocols, decision trees, and implementation tools. You can work through the system on your own timeline, revisit any section as needed, and access all the materials whenever you want.

The system guides you through identifying your specific sleep disruption patterns, then routes you to the exact protocols that will work for your situation.

No ongoing membership fees, no live coaching requirements—just immediate access to the complete system that you can use repeatedly as your needs change.

Can Sleep OS help with sleep apnea?

Sleep OS does not diagnose, treat, or cure sleep apnea. Obstructive sleep apnea is typically an airway problem that needs clinical testing and device- or procedure-based care. If you suspect sleep apnea, the first step is assessment by a sleep specialist or your healthcare provider.

However, sleep apnea rarely exists in isolation. Studies show that 30–50% of people with sleep apnea also have overlapping insomnia and circadian factors. Data also suggests that 9–22% of people report residual daytime sleepiness despite good CPAP compliance. This is where Sleep OS becomes relevant. While CPAP addresses the airway obstruction, your internal biological systems that regulate sleep quality can still be disrupted independently. These are the same systems that affect anyone’s sleep—whether they have apnea or not.

Sleep OS works on these underlying biological factors that determine sleep quality regardless of anatomical issues. If you’re receiving proper care for sleep apnea but still experiencing fragmented sleep or daytime fatigue, Sleep OS may help optimize the additional layers affecting your rest.

For anyone with diagnosed or suspected sleep apnea, Sleep OS works as a complement to—not a replacement for—appropriate medical care.

How do I know which tier to choose??

Simple decision tree: If you want solutions guided by your sleep disruption patterns and symptoms (no precision work required), choose CORE ($97). If you have longstanding complex sleep issues and want the complete system with precision capabilities, choose APEX ($397). If you want personalized guidance on top of the complete system, choose ELITE ($997).

CORE works for most people who want proven frameworks guided by their sleep patterns and symptoms without precision work.

APEX is the complete Sleep OS system with comprehensive precision protocols—often faster since you get direct biomarker data instead of monitoring cues over time.

ELITE includes the complete system plus 1:1 protocol review and founding member benefits.

Do I need lab testing to start?

No. Every tier works without testing. CORE is built around behavioral frameworks that don’t require any labs. The upper tiers (APEX and ELITE) add precision work that can identify the problem directly with data—instead of mapping your sleep patterns to figure out which system is disrupted, biomarkers tell you immediately what’s actually happening internally.

You can also start with behavioral foundations and layer in precision work later, but many people choose the higher tiers specifically for the time-saving advantage of direct problem identification rather than pattern interpretation.

How long until I see results?

Some people notice improvements within 3 days, most see changes within 2-4 weeks. However, improvements continue for 4-6 months—even years—once you identify and address your specific root cause patterns. Sleep OS emphasizes sustainable solutions over quick fixes.

As Kat explains: “My own recovery followed this pattern: fast initial improvement with some ups and downs, but a general uptrend over 3-6 months. My sleep continues improving to this day in terms of depth and how refreshed I feel the next day.” The timeline varies because everyone’s disruption patterns are different, and people have been affected for different lengths of time.

This is exactly why the system is built to target your specific patterns rather than promising universal timelines.

Is this medical advice or treatment?

This is educational content and implementation tools, not medical advice or treatment. Sleep OS teaches you how biological systems work and provides frameworks for optimization—it doesn’t diagnose or treat medical conditions. If you have diagnosed sleep disorders or medical conditions, you can use this system alongside your medical treatment, not instead of it. If you are under medical care for medical conditions, always consult healthcare providers for medical decisions or lifestyle changes.

What is Sleep OS exactly? Is this an app?

Sleep OS is a complete sleep recovery and optimization system—not an app or tracker. It’s a strategic framework that helps you identify why your sleep is disrupted and guides you to the specific protocols that will fix your particular patterns. Unlike generic sleep advice or one-size-fits-all solutions, Sleep OS works as a personalized system. Whether you have occasional sleep issues or chronic problems, it routes you to the exact approaches that match your disruption patterns—with or without testing. Sleep OS provides a systematic method to identify what’s disrupting your sleep, then gives you access to the precise tools to address those specific issues.

How is Sleep OS delivered? Do I get immediate access?

Sleep OS is delivered as a comprehensive digital system in Notion with immediate web access after purchase. It’s completely self-paced so you can improve your sleep on your own timeline—no waiting for appointments or working around someone else’s schedule.

Everything is done-for-you: structured protocols, step-by-step guides, decision trees, assessment frameworks, and implementation tools. Think of it as how I would coach someone through sleep recovery, but compressed into a digital system you can access anytime.

The genius is that it’s both personalized and self-guided. The system routes you to your specific protocols based on your sleep patterns, but you control the pace and can revisit any section as needed. No note-taking required—everything is written out, organized, and ready to implement immediately.

You get education + personalized implementation so you understand the why behind every strategy and how to adapt approaches as your sleep improves. If you prefer to skip the educational layers, there are direct-access tools and protocols, though the system works best when you understand the underlying mechanisms.

How is this different from other sleep advice?

Most sleep advice gives you general tips to try. Sleep OS maps your specific patterns through systematic assessment, then provides targeted protocols based on your disruption type.

Instead of trying multiple approaches and hoping something works, you follow a clear path: assess your patterns → implement the right framework based on your high-priority levers → address root causes systematically.

It’s comprehensive rather than piecemeal, and personalized rather than one-size-fits-all. You get a systematic method to identify what’s actually wrong with your sleep, then access the precise approaches that will work for your situation.

Is it worth the price?

Sleep OS helps you improve sleep without more trial and error, saving you time and money on supplements that may not address your actual issues. You don’t need ongoing Oura subscriptions or expensive tracking devices—you get the systematic approach to identify and fix what’s actually wrong.

Compare this to other sleep investments: an Oura Ring costs $400 plus subscription fees and tracks your sleep metrics, but doesn’t tell you why your sleep is poor or how to fix it.

An Eight Sleep Pod Cover costs $2,000+ and can track some biomarkers, but it’s still measuring downstream signs that sleep is disrupted—not identifying what’s causing the disruption in the first place.

Sleep OS gives you actionable protocols to fix the actual sources of poor sleep for your specific disruption patterns. You can also use it repeatedly when life circumstances change, stress shifts, or sleep patterns drift—the system helps you identify and address new disruptions as they arise.

Instead of spending hundreds or thousands over months and years on tracking devices and supplements without addressing the upstream factors, Sleep OS provides the systematic approach to identify and fix what’s actually wrong, for less than the cost of a single premium sleep device.

Sleep Deeper. Stay Asleep. Wake Up Restored.

Sleep OS is opening soon to a limited group of early members. Join now to secure your spot, get priority access to your preferred tier, and start with the exact system your sleep needs.

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