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Powerlogy™ Upgraded Deep Sleep

A complex of functional ingredients to calm the nervous system and support quality sleep

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Calm sleep Melatonin-free, with GABA and 5-HTP With lemon verbena and magnesium
60 capsules 30 doses 1,03 € / dose -11 % 30,95 € 34,95 € 3 x 60 capsules 90 doses 1,02 € / dose -12 % 91,95 € 104,85 €
34,95 €30,95 € incl. tax Lowest price in the last 30 days: 30,95 €
In stock > 10 - estimated delivery 12. 10. - 13. 10.
Minimum shelf life until: 1. 5. 2027
Gift with orders over €80
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What matters in 20 seconds

A premium sleep formula without melatonin. Combines GABA, 5-HTP, L-tryptophan, the patented RelaxPLX® lemon verbena extract, and magnesium bisglycinate. Vegan capsules, caffeine-free, no artificial additives.

0
active ingredients
0 mg
melatonin
0 mg
RelaxPLX® verbena
0
daily servings

Ideal for

natural sleep onset without sedatives
relaxation after a physically and mentally demanding day
easy waking without grogginess
a natural solution without melatonin

Built With Intent

Deep Sleep is built on two pillars: amino acids and their precursors (GABA, 5-HTP, L-tryptophan) and the patented plant extract RelaxPLX® from lemon verbena. Magnesium bisglycinate and MCT oil complete the formula.

RelaxPLX®
200 mg - Aloysia citriodora extract A patented lemon verbena extract with a standardised verbascoside content. Reduces evening restlessness and prepares the body for deeper sleep.6
GABA
100 mg - gamma-aminobutyric acid The primary inhibitory neurotransmitter in the nervous system. It quiets brain activity and helps the body switch from daytime mode into sleep.1,2
L-tryptophan
100 mg - essential amino acid The building block for serotonin and, in turn, melatonin — the sleep hormone. The body cannot produce it on its own; it supplies the raw material for a natural sleep cycle.3
5-hydroxytryptophan (5-HTP)
98 mg - Griffonia simplicifolia seed extract A direct serotonin precursor from African Griffonia simplicifolia. It saves the body one conversion step — faster serotonin production, a smoother transition into sleep.4,5
Magnesium bisglycinate
17,62 mg - chelated form A chelated form with better bioavailability than magnesium oxide. It supports muscle relaxation and reduces nervous excitability — two factors that determine how quickly you fall asleep.7,8
MCT oil powder
15 mg - C8/C10 triglycerides A carrier that enhances absorption of the fat-soluble components in the formula. Without it, a portion of the active ingredients would be lost before they can take effect.9

How is the formula structured?

Deep Sleep combines three types of active ingredients: a plant extract, amino acids and their derivatives, and a mineral. Each group contributes differently to the overall concept of the formula.

1
Botanical base
RelaxPLX® is a patented lemon verbena (Aloysia citriodora) extract with a standardised phenylpropanoid content. It is the only ingredient of its kind in this product category.
2
Amino acids and derivatives
GABA, L-tryptophan, and 5-HTP from Griffonia simplicifolia are three distinct ingredients with different entry points in the body. Their combination is a common choice in sleep hygiene formulas.
3
Everyday use
The formula is designed for regular use 1–2 hours before bedtime. Vegan capsules (HPMC), caffeine-free, melatonin-free, made in the Czech Republic.

Ingredients studied in clinical trials

Several ingredients used in Deep Sleep appear in published clinical studies. The results cited below relate to individual ingredients, not to the finished product formula as a whole.

ingredient studied
placebo
GABA (100 mg) – change in relaxation index (EEG alpha waves)1,2
+ 0 %
+ 0 %
GABA+5-HTP (100+100 mg) – reduction in sleep onset latency3
- 0 %
- 0 %

When and how to take it?

Recommended dosage: 2 capsules (1 serving) daily, 1–2 hours before bedtime. Take with plenty of water. Each pack contains 30 servings (60 vegan capsules).

1–2 hrs before bedtime
2 capsules
Take with plenty of water
Evening
Caffeine-free
Contains no stimulants, won't disrupt your evening routine
Morning
Fresh start
No heavy-headed feeling or grogginess

Product details

Number of capsules 60 pcs
Composition minerals, vitamins, vegetarian capsule (HPMC), cellulose (bulking agent), anti-caking agents (silicon dioxide, vegetarian magnesium stearate). The product contains no allergens.
Made in Czech Republic

Active ingredient Contents per serving (2 capsules)
RelaxPLX® (lemon verbena leaf extract) 200 mg
GABA (gamma-aminobutyric acid) 100 mg
L-tryptophan 100 mg
5-hydroxytryptophan (Griffonia simplicifolia seed extract) 98 mg
Magnesium (magnesium bisglycinate) 17.62 mg (5% NRV*)
MCT oil powder (medium-chain triglycerides) 15 mg
*NRV = Nutrient Reference Value for adults (EU Regulation 1169/2011).

Recommended dosage: 1 serving (2 capsules) daily, 1–2 hours before bedtime, taken with plenty of water. Each pack contains 30 servings (60 vegan capsules).
Warning: This product contains 5-HTP (5-hydroxytryptophan). If you are taking medications that affect the serotonin system (SSRIs, SNRIs, MAO inhibitors, etc.), consult your doctor before use. Do not exceed the recommended daily dose. Not suitable for children. Pregnant and breastfeeding women should consult a doctor before use. Do not use if you are sensitive to any of the ingredients. Keep out of reach of children. Food supplements are not a substitute for a varied diet.
Storage: Store at room temperature in a dry, dark place. Clumping of the contents is not a defect.

  1. Kimura M et al. - Psychological stress-reducing effect of chocolate enriched with gamma-aminobutyric acid (GABA) in humans. Int J Food Sci Nutr. 2009.
  2. Abdou AM et al. - Relaxation and immunity enhancement effects of gamma-aminobutyric acid (GABA) administration in humans. Biofactors. 2006.
  3. Shell WE et al. - A randomized, placebo-controlled trial of an amino acid preparation on timing and quality of sleep. Am J Ther. 2010.
  4. Kim S et al. - Sleep-promoting effects of a GABA/5-HTP mixture: Behavioral changes and neuromodulation in an invertebrate model. Food Chem. 2019.
  5. Kim S et al. - Sleep-promoting effects of the GABA/5-HTP mixture in vertebrate models. Behav Brain Res. 2019.
  6. Afrasiabian F et al. - Aloysia citriodora Palau (lemon verbena) for insomnia patients: A randomized, double-blind, placebo-controlled clinical trial of efficacy and safety. Phytother Res. 2019.
  7. Schuette SA et al. - Bioavailability of magnesium diglycinate vs magnesium oxide in patients with ileal resection. JPEN J Parenter Enteral Nutr. 1994.
  8. Abbasi B et al. - The effect of magnesium supplementation on primary insomnia in elderly: A double-blind placebo-controlled clinical trial. J Res Med Sci. 2012.
  9. Marten B et al. - Medium-chain triglycerides. Int Dairy J. 2006.

The science behind the Upgraded line

I created the Powerlogy Upgraded premium line for the most discerning customers, who demand the highest quality and efficacy. Upgraded products are enhanced with innovative ingredients such as MCT oil, prebiotic fibre, adaptogens and bioactive compounds.

I develop the formulas based on the latest scientific findings. I combine the effects of various ingredients to provide energy and support specific body functions – immunity, digestion, recovery, and physical and mental performance. I consult on the functional benefits with the scientific advisory board that we work closely with at Powerlogy.

I recommend Upgraded products as the solution for people who want a reliable source of energy and nutrition every day.

– Dušan Plichta, founder of Powerlogy and product creator

Frequently asked questions

Melatonin is a hormone, and in the EU it is only permitted in low doses (up to 0.5 mg) or as a regulated medicine. Many users avoid melatonin due to unwanted morning grogginess or a desire to avoid dependence on exogenous melatonin. Deep Sleep takes a different approach to sleep hygiene — it combines ingredients studied in relation to relaxation and sleep quality, while allowing the body to regulate its own melatonin from available precursors (L-tryptophan, 5-HTP).

Deep Sleep contains no substances with a classified addiction potential, nor any for which tolerance is known to develop at typical supplement doses. Ingredients such as GABA, 5-HTP, and L-tryptophan occur naturally in the body and in food. The experience of sleep support may vary depending on individual sensitivity, daily routine, and consistency of use.

Yes, combining the two is common practice. Deep Sleep contains only 17.62 mg of magnesium (5% NRV) — a complementary dose, not a therapeutic one. If you want to realise the full potential of magnesium supplementation (300 mg/day), Magnesium Complex will deliver that on its own. Both products can be taken before bedtime. Total magnesium intake from all sources, including diet, should not exceed safe levels over the long term.

Reviews

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Translated from CZ

The product works

Zuzana
Translated from SK

My sleep has been deeper and longer since I started using Deep Sleep, it started working after 2 weeks.

Verified customer
Translated from CZ

You really do sleep better with it, sleep is deeper and better quality. Tastes normal, the capsules don't have any weird aftertaste. Didn't notice any. For me it's one of the best supplements I've ever used, because I can genuinely feel it working on me, it's not just placebo. In the morning I feel better, more rested, especially on days when I didn't manage to sleep as much as I would've liked.

Translated from SK

Combined with magnesium bisglycinate it works well.

Translated from SK

Thank you Powerlogy, I sleep much better and I don't wake up feeling all achy. Amazing, thank you!

Ragnok
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A weaker version of GABA, but still great.

Verified customer
Translated from SK

Improves sleep quality. It's not a sleeping pill, but it really helps.

Martina
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Works perfectly for falling asleep faster and sleeping more deeply

Katarina
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Seems to work, glass jar, not plastic. The price :/. My partner has had trouble sleeping for a long time because of mental tension. We tried OYONO with 1 mg melatonin, but it didn't do anything. About these capsules from Powerlogy he told me he actually feels like they really work. He takes 2 capsules 2 hours before bed. Haven't tried them on myself yet.

Translated from CZ

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