Boost cellular energy and slow the aging process from within.
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Trusted by 50,000+ health-focused customers
Deep Sleep System – Premium Sleep Restoration Stack
$116.63
SAVE
$0.00
A complete sleep protocol that lowers nighttime cortisol, relaxes the body, and restores deep, restorative sleep.
Restores deep, restorative sleep
Lowers nighttime cortisol naturally
Relaxes muscles and the nervous system
Helps you wake up clear, not groggy
What You Get
Sleep Formula
Multi-ingredient blend for falling and staying asleep
$52.99
$46.88
Magnesium Glycinate
Relaxes muscles and the nervous system
$47.87
$39.87
Ashwagandha
Lowers nighttime cortisol and stress
$38.99
$29.88
Fast shipping from the USA
Secure checkout
60-day money-back guarantee
WHAT TO EXPECT
In the first week, expect easier sleep onset and less restless wakings. By week two, sleep cycles deepen and morning grogginess disappears. By day 21, most users report consistent, restorative sleep and feel genuinely rested for the first time in years.
WHAT'S INCLUDED
Sleep Formula, Magnesium Glycinate, and Ashwagandha — a complete sleep protocol that targets cortisol, muscle tension, and brain calmness.
HOW DOES IT WORK
Ashwagandha lowers cortisol so your nervous system can wind down. Magnesium relaxes muscles and quiets the nervous system. Sleep Formula supports the brain's natural transition into deep sleep. Together, the three pillars of real rest.
INGREDIENTS
KSM-66 Ashwagandha root extract, magnesium bisglycinate, and a sleep blend featuring melatonin, L-theanine, and calming botanicals. Free from habit-forming sedatives.
The deepest Sleep Stack that delivered
Thousands of chronic insomniacs, high-stress professionals, and night-shift workers have used Deep Sleep System to rebuild real, restorative sleep.
"First real sleep in years"
"I'd given up on actual deep sleep. After two weeks on this stack, I wake up rested for the first time since my 20s."
— Helena V.
Verified Customer
"Cortisol was the missing piece"
"Sleep aids never worked for me alone. Adding ashwagandha to lower nighttime cortisol changed everything."
— Daniel P.
Verified Customer
"No more 3am wake-ups"
"I used to wake up at 3am every night. That just stopped. The stack handles whatever was keeping me up."
— Aisha M.
Verified Customer
"Worth the upgrade"
"I started with the Duo and upgraded to this. The ashwagandha addition is night and day."
— Joshua T.
Verified Customer
One Simple Kit, Three Powerful Phases
21 nights to rebuild deep, restorative sleep.
Days 1–7
PHASE 1:
Lower Cortisol
Ashwagandha begins regulating nighttime cortisol. Magnesium relaxes the body.
Days 8–14
PHASE 2:
Deepen Sleep Cycles
Sleep Formula and the full stack deepen sleep cycles. Restorative sleep returns.
Days 15–30
PHASE 3:
Lock In Recovery
Sleep is consistent and deep. Mornings are clear, energy compounds, mood lifts.
The Real Problem Isn't Sleep Time. It's Sleep Quality.
You can spend 8 hours in bed and still wake up exhausted. Real sleep requires the right hormonal and nervous system conditions.
Nighttime Cortisol
Stress hormones stay elevated, keeping your brain alert when it should be winding down.
Tense, Restless Body
Magnesium-depleted muscles and a revved-up nervous system block deep relaxation.
Light, Fragmented Sleep
You technically sleep, but never reach the deep, restorative phases that actually rebuild your body.
Groggy Mornings
Most sleep aids sedate you instead of supporting real recovery — leaving you foggy the next day.
A Complete System for Deep Sleep
Three products, three pillars of real rest: cortisol, muscle, and brain calmness.
Lower Nighttime Cortisol
Ashwagandha addresses the hormonal driver of insomnia that most sleep products ignore.
Relax the Body
Magnesium glycinate is the most absorbable form, ideal for nervous system and muscle relaxation.
Quiet the Mind
Sleep Formula supports the brain's transition into deep, restorative sleep without sedation.
Wake Up Clear
The full stack supports real recovery — so you wake up rested, not drugged.
What Makes Deep Sleep System Different
A premium upgrade from the basic Sleep Duo, for anyone who needs more than relaxation alone.
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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, restored. Three products to rebuild deep, recovering sleep, night after night.
Slide 1 of 1
Trusted by 50,000+ health-focused customers
Deep Sleep System – Premium Sleep Restoration Stack
$116.63
SAVE
$0.00
A complete sleep protocol that lowers nighttime cortisol, relaxes the body, and restores deep, restorative sleep.
Restores deep, restorative sleep
Lowers nighttime cortisol naturally
Relaxes muscles and the nervous system
Helps you wake up clear, not groggy
What You Get
Sleep Formula
Multi-ingredient blend for falling and staying asleep
$52.99
$46.88
Magnesium Glycinate
Relaxes muscles and the nervous system
$47.87
$39.87
Ashwagandha
Lowers nighttime cortisol and stress
$38.99
$29.88
Fast shipping from the USA
Secure checkout
60-day money-back guarantee
WHAT TO EXPECT
In the first week, expect easier sleep onset and less restless wakings. By week two, sleep cycles deepen and morning grogginess disappears. By day 21, most users report consistent, restorative sleep and feel genuinely rested for the first time in years.
WHAT'S INCLUDED
Sleep Formula, Magnesium Glycinate, and Ashwagandha — a complete sleep protocol that targets cortisol, muscle tension, and brain calmness.
HOW DOES IT WORK
Ashwagandha lowers cortisol so your nervous system can wind down. Magnesium relaxes muscles and quiets the nervous system. Sleep Formula supports the brain's natural transition into deep sleep. Together, the three pillars of real rest.
INGREDIENTS
KSM-66 Ashwagandha root extract, magnesium bisglycinate, and a sleep blend featuring melatonin, L-theanine, and calming botanicals. Free from habit-forming sedatives.