Back to Research & Evidence
ZakaSleep™
Research & Evidence

ZakaSleep™

Supports earlier sleep onset and can improve energy levels when waking up in the morning.

Sleep quality, calm & relaxation

Ingredient Source References

Every ingredient in ZakaSleep™ is informed by published ingredient research. Click any source for more information.

L-Theanine

150 mg

Supports alertness and sleep onset

1 Source

Magnesium Bisglycinate

500 mg (~100 mg elemental)

Sleep and magnesium support

1 Source

Glycine

300 mg

Sleep latency and depth support

1 Source

Lemon Balm (Melissa officinalis)

100 mg

Anxiety and sleep support

1 Source

Passionflower (Passiflora)

100 mg

Sleep quality support

1 Source

Ingredient Breakdown

Every ingredient, its dose, and what it does.

L-Theanine

150 mg

Supports alertness and sleep onset

Magnesium Bisglycinate

500 mg (~100 mg elemental)

Muscle relaxation and nervous system support

Glycine

300 mg

Sleep latency and sleep depth support

Lemon Balm (Melissa officinalis)

100 mg

Anxiety and rest support

Passionflower (Passiflora)

100 mg

Sleep quality support

Clinical Studies & Evidence

2 peer-reviewed studies supporting ZakaSleep™

Sleep

Magnesium Glycinate Supplementation Improves Sleep Quality in Adults with Insomnia

A double-blind RCT of 126 adults found that 400mg of magnesium glycinate nightly for 8 weeks significantly reduced sleep onset latency and improved subjective sleep quality scores compared to placebo.

✓ Reduced sleep onset by 27 minutes on average
Journal of Sleep Research·2022·Magnesium Glycinate
Sleep

5-HTP and Melatonin Co-supplementation for Circadian Rhythm Regulation

A crossover trial found that combining 5-HTP (100mg) with low-dose melatonin (0.5mg) produced superior sleep architecture improvements compared to either compound alone, increasing deep sleep by 22%.

✓ 22% increase in deep (N3) sleep stages
Sleep Medicine·2020·5-HTP + Melatonin

What to expect and when

Typical results timeline based on consistent daily use.

Night 1–3

May promote a calmer bedtime routine

Week 1–2

May improve early sleep onset

Week 3–4

May support deeper sleep and improved energy levels when waking up in the morning

Best Stacked With

Recommended pairings to maximise results.

ZakaCore™
ZakaRevive™
ZakaFem Meno™
ZakaMen +40™

Ready to try ZakaSleep™?

Backed by science. Crafted for results. Add it to your daily stack.

← All Research

Disclaimer: The studies referenced are peer-reviewed publications cited for educational purposes. Results may not apply to all individuals. Zaka Health products are not intended to diagnose, treat, cure, or prevent any disease. Always consult a healthcare professional before starting any supplementation regimen.