Irwin Naturals Power to Sleep PM Review - For Restlessness and Insomnia Insomnia Updated August, 2022
Final Thoughts

Overall Score 62%

Irwin Naturals Power to Sleep PM Review

Manufacturer’s Claims

Irwin Naturals Power to Sleep PM is a dietary supplement that is labeled as assisting with the ability to obtain a restful night’s sleep without feeling groggy in the morning. We review this product in-depth and report on our findings below.

Many people suffer from insomnia or disrupted sleep, which negatively impacts overall health, well-being and optimal mental and physical performance. With this in mind, Irwin Naturals has formulated a mostly herbal dietary supplement in a softgel capsule form to promote relaxation before sleeping, stimulate sleep and restore the body’s natural nutrient balance so as to minimize the effects of stress.


Below are the main ingredients per serving, each serving comprising 2 capsules:

  • Calcium (as Calcium Citrate) – 10 mg
  • Magnesium (as Magnesium Citrate) – 13 mg
  • Valerian Extract (0.8% valerenic acid) (root) – 200 mg
  • Ashwagandha Extract (5% withanolides) (root) – 150 mg
  • Hops Extract 4:1 (strobile) – 150 mg
  • Passionflower Extract (3.5% flavonoids) (pericarp) – 150 mg
  • Lemon Balm Extract (5% rosmarinic acid) (herb) – 10 mg
  • GABA (Gamma-Aminobutyric Acid) – 100 mg
  • L-Theanine – 50 mg
  • Melatonin – 2 mg
  • Bioperine Complex Bioperine consisting of Black Pepper extract (95% piperine) (fruit) and Ginger extract (5% gingerols) (root) – 6 mg

Other ingredients include soybean oil, gelatin, glycerin, purified water, soy lecithin, beeswax, titanium dioxide, caramel color and red cabbage powder.

Valerian Root Extract is a well-known natural anti-insomnia and anti-anxiety agent. Melatonin and GABA help the body maintain normal sleep cycles. Ashwagandha is a botanical that can aid the body’s stress coping mechanism. Along with calcium and magnesium., this helps promote a healthy nervous system. Cumulatively the effect on the body could be a sound period of rest that leaves the individual waking up feeling refreshed and with renewed vitality.

The 0.8% ratio extract is good although optimal results are often reported at 0.10% levels. Glycerin can act as a diuretic, with some users reporting an increased urge to urinate in the night. This in itself would disturb a normal sleep cycle.

Power to Sleep PM best avoided during pregnancy.


An adult dose is 2 liquid softgels 30 minutes before bedtime.


Power to Sleep PM retails online for $20.99 for a bottle of 60 tablets, or 1 month’s supply. A 10% discount applies to purchases of $50 or more, and a 15% discount applies to purchases of $100 or more when ordering from the manufacturer’s website.

Possible Side Effects

A possible increased urge to urinate, depending on the user’s sensitivity to Glycerine, a known diuretic. The bottle carries the state of California warning which cites possible birth defects, probably due to the inclusion of titanium dioxide.


Our research did not uncover any guarantees.

Irwin Naturals Power to Sleep PM Review – The Bottom Line

Power to Sleep PM is a solid formulation for those seeking a herbal-based dietary supplement to aid sleep, particularly thanks to the calming and other effects of ginger and the sleep-inducing nature of Valerian extract. The Valerian extract levels should preferably be 0.2% more to provide optimum rest benefits. The product is not 100% natural although it is largely so. The product receives good as well as bad reviews, the net effect of which is average overall user satisfaction. Some users report an increased urge to urinate, which disrupts sleep. This is likely due to the inclusion of glycerine.

Users also report the effect wearing off after 4 or 5 days, and having to take an increased dosage. A selection of users do find the product very beneficial. Pregnant users need to avoid this product due to the mandatory state of California label warning concerning the inclusion of a chemical that potentially causes birth defects.

Reviewed & delivered by our panel of experts at Reviewy.