Kirkland Sleep Aid Review: Should You Trust This Product?

Kirkland Sleep Aid gives you relief from occasional sleeplessness. It is safe, fast-acting, non-habit forming, and proven effective in reducing the difficulty in falling asleep.

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In This Review

Overview of Kirkland Sleep Aid

The large, well-known company Costco manufactures the product Kirkland Sleep Aid. It is part of their full Kirkland range of top sleep supplements and is sold online and in their retail locations at a cost of $12.45 per bottle.

While this is a very affordable price, there does not appear to be any form of money back guarantee although all Costco products have a satisfaction promise.

The official website, on the whole, is reasonably informative, and there are a number of customer reviews and FAQ section, but the details for individual products is limited.

How Does It Rate?

Overall Rating: 3.4
Kirkland Sleep AidKirkland Sleep Aid


Value for Cost

Return Policy

3.4/5Return Policy


Brand Highlights

  • Kirkland Sleep Aid is manufactured by Costco.
  • They claim that the chemicals in their products have no major side effects.



*All individuals are unique. Your results can and will vary.

Key Ingredients

  • Doxylamine Succinate


  • Manufactured by a well-known company
  • Might help you fall asleep faster
  • The key active ingredient is proven effective


  • No clinical studies of the Kirkland Sleep Aid brand are published
  • The product has not been evaluated by FDA and it does not treat, cure or prevent any disease.

How Does Kirkland Sleep Aid Work?

Doxylamine Succinate is the sole active ingredient in Kirkland Sleep Aid. Sometimes labeled as Unisom, it is a sleep-inducing substance that is designed to allow the user to fall asleep faster and enjoy more restful, undisturbed sleep.

The natural sleep aid is also used to treat allergies as it is an antihistamine but is proven to have beneficial effects on mild to severe sleeplessness [1].

There are a lot of non-active ingredients in Kirkland Sleep Aid, which are not all listed, but the formula is not known to cause harmful side effects. However, it should not be used by people also taking antihistamines.

Kirkland Sleep Aid Ingredients – Are they Safe & Effective?

The only ingredient mentioned on the product label is as follows:

Doxylamine Succinate

– Doxylamine is used to treat insomnia(difficulty falling asleep or staying asleep)in the short term. This drug works by preventing your body from producing certain natural molecules (histamine, acetylcholine). This impact alleviates allergy/cold symptoms like watery eyes, a runny nose, and sneezing.[2]




*All individuals are unique. Your results can and will vary.

Kirkland Sleep Aid FAQ’s

Q: How Should You Take Kirkland Sleep Aid?

A: As a dietary supplement, one tablet per dose is enough.

Q: How Much is Kirkland Sleep Aid?

A: Kirkland Signature Sleep Aid is sold at varying prices in different retail stores. On the retail online store, the product is sold for $12.45.

Q: What is Kirkland Sleep Aid Return Policy?

A: The return policy is exclusive to the respective channel from where you are purchasing the product.

Q: Does Kirkland Sleep Aid Offer a Free Trial?

A: No. The product is not offered on a free trial.

Q: Where to buy this product?

A: Kirkland Sleep Aid can be purchased directly from the official website, please do check if it is available on Amazon. (Note: Currently unavailable. We don’t know when or if this item will be back in stock).


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*All individuals are unique. Your results can and will vary.

Kirkland Sleep Aid Review – Final Verdict

Because Kirkland Sleep Aid is so affordable, the amount of active ingredient used in the brand may not be overly potent.

At most, the sleep aid may be effective in the treatment of mild sleep disorders and anyone seeking help for severe symptoms should consult a doctor.

There are many people who may have a hard time falling or staying asleep. Consequently, they wake up exhausted and irritable. Effective, natural sleep aids can help return to a normal sleep schedule resulting in improve overall health, mood, and well-being.

Below you'll find some of the most effective all natural sleep aid formulations on the market today, in our opinion.

Our Top Sleep Aid Choices

Verdict on Claimed Benefits: Below is our summary of the available evidence for the claimed benefits of below mentioned natural sleep aids, sleep support supplements and anti-snoring mouthpiece based on the available research:

VitaPost Sleep Support Plus | Best Sleep Support Supplement
Supports Healthy Sleep Cycles*Gold Star Evidence
Occasional Sleeplessness Relief*Gold Star Evidence
Enhances Sleep Quality*Strong Evidence
Supports Relaxation Feelings*Gold Star Evidence
Rating Breakdown
Support for Claims:
Ingredient Safety:
Value for the Price:
Brand Transparency:
Overall Rating: 4.9
NooCube Sleep Upgrade | Boost Cognitive Performance
Fall Asleep Fast*Gold Star Evidence
Stay Asleep Longer*Gold Star Evidence
Improves Brain Performance and Memory*Strong Evidence
Improves Mental Health*Strong Evidence
Rating Breakdown
Support for Claims:
Ingredient Safety:
Value for the Price:
Brand Transparency:
Overall Rating: 4.8
Snoran Plus | Say Stop To Snoring!
Reduces Snoring*Gold Star Evidence
Improves Breathing*Strong Evidence
Provides Deep and Relaxing Sleep*Gold Star Evidence
Promotes Restful Sleep*Strong Evidence
Rating Breakdown
Support for Claims:
Ingredient Safety:
Value for the Price:
Brand Transparency:
Overall Rating: 4.8

Product reviews are provided for informational purposes only and reflect solely the views and opinions expressed by the contributors and not those of Consumer Health Digest. We do not verify or endorse any claims made in these reviews. Please read the full product reviews disclaimer. *All individuals are unique. Your results can and will vary.

Customer Reviews for Kirkland Sleep Aid*

Kirkland Sleep Aid Review: Should You Trust This Product?

Customer Reviews & Ratings

1.5 out of 5

Review this Product

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  1. sheila montoya

    Concerned customer not happy
    I took just one Kirkland Sleep Aid, and I began to experience dizzy spells. I had a serious episode; I thought I was having a stroke, but it wasn’t that, so I stopped taking it, and the dizziness went away. It was scary, but there was only one pill, which is not good.
  2. Jane Price

    Started off good.
    This sleep aid was like all the others for me. It worked great the first 3 or 4 nights then after that it did not seem to help at all.

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Kirkland Sleep Aid*
96 Tablet
Doxylamine Succinate

2 Sources

We review published medical research in respected scientific journals to arrive at our conclusions about a product or health topic. This ensures the highest standard of scientific accuracy.

**This is a subjective assessment based on the strength of the available informations and our estimation of efficacy.

*Result may vary. If you are pregnant, nursing, have a serious medical condition, or have a history of heart conditions we suggest consulting with a physician before using any supplement. The information contained in this website is provided for general informational purposes only. It is not intended to diagnose, treat, cure, or prevent any disease and should not be relied upon as a medical advice. Always consult your doctor before using any supplements.

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