Boost cellular energy and slow the aging process from within.




Trusted by 50,000+ health-focused customers
Sleep Duo – Simple Restorative Sleep Kit
SAVE
Two trusted products that work together to relax your body and restore deep, restorative sleep without dependency.
Promotes deep, restorative sleep
Relaxes muscles and the nervous system
Reduces nighttime stress and tension
Helps you wake up refreshed, not groggy
What You Get

Sleep Formula
Multi-ingredient blend for falling and staying asleep

Magnesium Glycinate
Relaxes muscles and calms the nervous system

Magnesium Glycinate
Relaxes muscles and calms the nervous system
Fast shipping from the USA
Secure checkout
60-day money-back guarantee
WHAT TO EXPECT
In the first few nights, expect to fall asleep faster and feel less restless. By week two, sleep depth improves and you wake up more rested. By day 21, most users report consistent, restorative sleep without the next-day grogginess of typical sleep aids.
WHAT'S INCLUDED
Sleep Formula and Magnesium Glycinate — a complete entry-level sleep stack with simple daily dosing.
HOW DOES IT WORK
Magnesium relaxes the muscles and nervous system, while the Sleep Formula supports the brain's natural transition into restful sleep. Together they address the two most common reasons people can't sleep: a tense body and an overactive mind.
INGREDIENTS
Magnesium bisglycinate, plus a sleep blend featuring melatonin, L-theanine, and calming botanicals. Free from habit-forming sedatives, gluten, and artificial fillers.
The simplest Sleep Stack that delivered
Thousands have used the Sleep Duo to fall asleep faster, sleep deeper, and stop relying on prescriptions or melatonin gummies that leave them groggy.
"Asleep in minutes"
"I used to lie awake for an hour every night. Now I'm out within ten minutes and stay asleep until morning."
— Hannah W.
Verified Customer
"No more grogginess"
"Other sleep aids made me feel hungover. This combo just works — I sleep deeper and wake up clear."
— Eric S.
Verified Customer
"Finally a routine that sticks"
"Two products, easy to take, and the results are real. I sleep through the night for the first time in years."
— Camila J.
Verified Customer
"Worth it from night one"
"I noticed a difference the very first night. By week two, sleep felt completely different."
— Reggie M.
Verified Customer
One Simple Kit, Three Powerful Phases
21 nights to reset your sleep and rebuild restorative rest.
Days 1–7
PHASE 1:
Fall Asleep Faster
Magnesium relaxes the body. Sleep Formula calms the mind. You drift off without the usual struggle.
Days 8–14
Sleep Deeper
Sleep cycles deepen and you stay asleep through the night. Mornings feel sharper.
Days 15–30
PHASE 3:
Lock In the Routine
Restorative sleep becomes consistent. Energy and mood stabilize as recovery compounds.
The Real Problem Isn't Effort. It's Biology.
You can't force yourself to sleep. Your body needs the right signals to relax and shift into deep rest.
Wired at Night
An overactive mind keeps you awake even when your body is exhausted. Stress hijacks your sleep window.
Tense, Restless Body
Muscle tension and a revved-up nervous system make it impossible to fully relax into sleep.
Light, Broken Sleep
You technically sleep, but you wake up tired. Your body never reaches the deep, restorative phases.
Groggy Mornings
Most sleep aids knock you out but leave you foggy. Real sleep should leave you sharp, not sedated.
A Simple System for Real Sleep
Don't pile on a dozen products. Two well-formulated supplements, working together, are enough to reset your sleep.
Calm the Mind
The Sleep Formula combines proven ingredients to ease mental chatter so you can actually drift off.
Relax the Body
Magnesium glycinate is the most absorbable form of magnesium, ideal for muscle and nervous system relaxation.
Sleep Through the Night
The combination supports both falling asleep and staying asleep, so you wake up genuinely rested.
No Dependency
Both ingredients are non-habit-forming. You can stop and start without rebound insomnia.
What Makes the Sleep Duo Different
A simple, science-backed entry into better sleep without overcomplicating it.
Formulated by Nathaly Marcus — Trusted by Millions
Nathaly Marcus is a functional medicine practitioner and supplement formulator trusted by millions for her evidence-based, no-BS approach to health.
She created the Sugar Reset Program after seeing countless people struggle with cravings and metabolic dysfunction, not from lack of willpower, but from broken biology.
Every FortCore formula is built to her exact standards: clinical doses, third-party testing, and ingredients she uses herself.
When you choose this program, you're getting a system designed by someone who refuses to compromise on quality or results.
✨ Real rest, no complexity. Two simple products to help you finally sleep through the night.




Trusted by 50,000+ health-focused customers
Sleep Duo – Simple Restorative Sleep Kit
SAVE
Two trusted products that work together to relax your body and restore deep, restorative sleep without dependency.
Promotes deep, restorative sleep
Relaxes muscles and the nervous system
Reduces nighttime stress and tension
Helps you wake up refreshed, not groggy
What You Get

Sleep Formula
Multi-ingredient blend for falling and staying asleep

Magnesium Glycinate
Relaxes muscles and calms the nervous system

Magnesium Glycinate
Relaxes muscles and calms the nervous system
Fast shipping from the USA
Secure checkout
60-day money-back guarantee
WHAT TO EXPECT
In the first few nights, expect to fall asleep faster and feel less restless. By week two, sleep depth improves and you wake up more rested. By day 21, most users report consistent, restorative sleep without the next-day grogginess of typical sleep aids.
WHAT'S INCLUDED
Sleep Formula and Magnesium Glycinate — a complete entry-level sleep stack with simple daily dosing.
HOW DOES IT WORK
Magnesium relaxes the muscles and nervous system, while the Sleep Formula supports the brain's natural transition into restful sleep. Together they address the two most common reasons people can't sleep: a tense body and an overactive mind.
INGREDIENTS
Magnesium bisglycinate, plus a sleep blend featuring melatonin, L-theanine, and calming botanicals. Free from habit-forming sedatives, gluten, and artificial fillers.
