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Working when the world sleeps

Your body runs on a
different clock.

Built by a shift worker inside a 2,400MW power plant. For the 25 million shift workers every health app has ignored. The first platform engineered around your actual schedule.

Join Founding Batch Read the story →
After 6 weeks · Pilot cohort
+4.2
PSQI sleep score improvement
Scroll to explore
Circadian Reset· Night Shift Nutrition· Shift-Timed Meals· Sleep Protocol· PSQI Tracking· Metabolic Repair· BP Management· Social Jetlag Fix· Energy Recovery· Rotating Shift Protocol· Circadian Reset· Night Shift Nutrition· Shift-Timed Meals· Sleep Protocol· PSQI Tracking· Metabolic Repair
2:46 AM · NTPC Darlipali · Units online

While millions sleep,
someone keeps
the world running.

That someone has been me — for 11+ years. Rotating A, B, C, D shifts across petrochemical plants, refineries, and thermal power stations. Post-night-shift drives home in the morning sun. Weight nobody could explain. Sleep that never felt complete.

I tried every fitness app, every diet, every health protocol. Every single one assumed I wake up at 7am and go to the gym at 6pm. None understood what 2am hunger actually feels like. None had a meal plan for someone finishing a 12-hour night shift at 6am in a refinery or a power plant.

"I stopped searching for solutions built for 9-to-5 people. So I started building one for us."

5to9.fit is a health operating system engineered around the shift worker's actual biology — your circadian clock, your meal windows, your sleep architecture. Built from inside critical infrastructure. For every engineer, nurse, operator, and pilot working when the world sleeps.

25M+
Shift workers in India with zero dedicated health support
100%
Of night-shift IT workers had poor sleep in Indian research
3.2×
Higher cardiovascular risk in long-term shift workers
11+
Years across refineries, petrochemical plants & power stations
Exhausted night shift nurse
40% Higher healthcare costs for shift workers
Person working at night on screens
The 9-to-5 bias

Every health app
assumes you
sleep at night.

The entire wellness industry is built for people who don't do your job. Here's what standard advice says — and what shift work actually looks like.

Standard"Get 8 hours at 10pm every night."
Your realityYou finish a night shift at 6am and try to sleep while neighbours start their day.
Standard"Eat breakfast at 8am, lunch at 1pm."
Your realityManaging hunger at 2am. Your insulin sensitivity is 35% lower right now.
Standard"Workout 5 days a week, same time."
Your realityAfter a 12-hour night shift your cortisol is inverted. "Just push through" is how injuries happen.
Standard"Eat less, move more. Simple."
Your realityCircadian disruption causes weight gain through leptin and ghrelin — regardless of calories.
What shift work does to your body

The invisible
toll.

These are documented biological consequences of circadian disruption — not hypothetical risks. Hover each card to understand what's actually happening inside your body.

Medical health monitoring
😴
Broken Sleep Architecture
Deep sleep and REM are disrupted even when you get 8 hours. Sleep efficiency drops below 75% in most shift workers.
⚖️
Unexplained Weight Gain
Night shifts suppress leptin and elevate ghrelin — making you hungrier and slower to feel full, independent of calorie intake.
🩸
Insulin Resistance
Insulin sensitivity is 30–40% lower at night. A normal meal after midnight triggers the same response as prediabetes.
💓
High Blood Pressure
Chronically inverted cortisol cycles directly promote arterial stiffness and elevated baseline BP.
🧠
Cognitive Fog
18–24 hours of wakefulness impairs cognition equivalent to 0.1% blood alcohol. Shift workers experience this chronically.
🔥
Metabolic Syndrome
Shift workers are 3.6× more likely to develop metabolic syndrome. Prevalence jumps from 8% to 31% between ages 30 and 40.
🫁
Gut Dysregulation
Night eating disrupts gut motility, bile production, and absorption — causing bloating, IBS, and nutrient deficiency.
😟
Social Isolation
Shift workers report 40% higher rates of depression and anxiety, linked directly to social schedule misalignment.
⚡
Chronic Fatigue
After 5+ years, baseline fatigue becomes the new normal. Most workers forget what truly rested feels like.
🫀
Cardiovascular Risk
Long-term night shift is linked to 23% higher heart attack risk and 24% higher stroke risk. The data is unambiguous.
Who this is for

Anyone working
when the world sleeps.

Factory industrial worker
⚡ Power & Industrial
Plant engineers, control room ops, refinery workers
Hospital healthcare night shift
🏥 Healthcare
Nurses, doctors, paramedics on night rotations
IT BPO night shift worker
💻 IT & BPO
Night shift engineers, support teams, data center ops
✈️ Pilots
🚂 Railway Staff
🗼 Air Traffic Control
🛢️ Oil & Gas
⚗️ Refinery Ops
🏗️ Manufacturing
🔒 Security
🚒 Firefighters
👮 Police
🚑 Emergency Services
🌊 Marine Engineers
⛏️ Mining
📡 Data Centers
🔧 Maintenance Eng
Anyone the world depends on at 3am
The operating system for shift workers

Not an app.
An operating system.

Every other platform added a night shift mode as an afterthought. We built the architecture from scratch — around your circadian biology, your roster, your real constraints.

Multiple screens control room dashboard
Your health · 3:00 AM Night shift · 3h left
😴 Sleep qualityPSQI +4.2
🍽️ Next mealBanana + protein (now)
☕ Caffeine cutoff4:00 AM
⚖️ Weight trend−3.8 kg / 6 wks
💓 BP statusImproving ↓
Live now
😴
Circadian Sleep Reset
Custom sleep protocol per rotation. Light management, blackout strategy, caffeine timing, strategic napping. Built around your actual shift hours.
Live now
🍽️
Shift-Timed Indian Meals
Pre-shift (6pm), mid-shift (11pm), post-shift (7am) meal plans. Dal, roti, poha — timed to your circadian window. Real 2am hunger protocol.
Live now
💬
Daily WhatsApp Coaching
Someone awake when you are. Daily check-ins timed to your shift. Weekly 1-on-1 video calls around your roster — not 9-to-5 hours.
Coming soon
📱
Shift Roster Sync
Connect your A/B/C/D rotation. Every recommendation auto-adjusts to your next shift — meal windows, sleep timing, exercise intensity.
Coming soon
⌚
Wearable Integration
Oura Ring, Ultrahuman, Apple Watch, Garmin. Your HRV and sleep score feed directly into your daily recommendations.
Coming soon
🤖
AI Health Coach
AI that knows your shift pattern, biomarkers, history. Intelligent, shift-specific guidance — not generic ChatGPT wellness advice.
Planned
🩸
Blood Report Analyzer
Upload your CBC, lipid panel, HbA1c. Get interpretation calibrated for shift workers — different reference ranges than daytime populations.
Planned
👥
Shift Worker Community
Engineers, nurses, operators, pilots — people who understand your life. A private community where the 3am loneliness has company.
Planned
🏭
Employer Programs
NTPC, hospital chains, BPO companies. ROI-backed cohort programs for HR teams who want to measure outcomes, not just intentions.
NTPC Darlipali control room 2:46am
Pilot · NTPC Darlipali · 6 weeks
3.8 kg
Average weight lost across 5 shift workers
Pilot program · April 2026

Real numbers.
Honest data.

5 shift workers from NTPC Darlipali. 6 weeks. Measured with PSQI sleep scores, weight, blood pressure, and energy ratings. No filters. No actors. No paid testimonials.

3.8kg
Average weight lost in 6 weeks
+4.2
Average PSQI sleep score improvement
+2.5h
Better sleep quality per night
100%
Reported measurable energy improvement
Full case studies with photos — publishing soon
See all results → See the program →
Nikhil Tank at NTPC Darlipali 2:46am
"It's 2:46am. I'm managing a 2,400MW unit. And I'm building a health platform for people like me."
Nikhil Tank
NTPC Darlipali · Control & Instrumentation Engineer · 11+ years rotating shifts
The founder
"No fitness app has ever understood what this life actually looks like."

I'm a control and instrumentation engineer with 11+ years across petrochemical plants, refineries, and thermal power stations — currently at NTPC Darlipali, one of India's largest supercritical power plants. The weight creep. The sleep that never recovers. The BP that crept up. I lived all of it.

I read everything — circadian biology, shift-work metabolism, chronobiology research. Then I built a protocol on myself, tested it across different shift environments, and watched it work. The problem isn't information. The problem is that all information assumes a 9-to-5 schedule.

5to9.fit is what I wish had existed. Built from the inside — not from a boardroom or a business school thesis, but from control rooms, refineries, and plant floors at 2:46am.

11+
Years rotating shifts at NTPC
2400
MW plant · Darlipali, Odisha
25M
Shift workers this is built for
6wks
To see measurable results
Full story → Talk to me
Founding Batch — 10 spots remaining

Stop trying to fit
a 24-hour life
into a 9-to-5 box.

Your body has been paying for your shifts for years.
Six weeks is all it takes to start reversing it.

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"The people who keep the world running deserve better health."

Ready to start? 10 founding spots left.
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