Kirkland Sleep Aid Reviews (2024 UPDATE): Is It Effective Enough?


What Is Kirkland Sleep Aid?

Kirkland Sleep Aid is a sleep-inducing supplement.

It was created to help customers who are experiencing mild to severe sleeplessness fall asleep fast with little to no difficulty.

This sleep aid is an antihistamine which can also be beneficial in treating symptoms of allergies and the common cold.

Kirkland Sleep Aid


Who Makes Kirkland Sleep Aid?

The maker of this sleep aid is Costco.

Kirkland is a privately owned brand that is only available through Costco.

The company was founded in 1983 in Seattle, Washington. They now have headquarters in Issaquah, Washington.

If you have any questions or concerns about this product, you can call 1-888-426-7826.

Best Kirkland Sleep Aid Alternative?

Due to all the negative reviews about Kirkland Sleep Aid, we’ve been looking for a competitive product that was proven more effective. We checked several of them with deception and finally came around a real effective sleep aid. You can read its review HERE.

Who Is Kirkland Sleep Aid For?

This product is for anyone who experiences difficulty in trying to fall asleep at night.

It’s also for those who suffer from symptoms of allergies because it is an antihistamine.

You should not use this product if you are pregnant, breastfeeding, under 12 years of age, or consuming alcohol.

If you have glaucoma, breathing issues, or trouble urinating, you should consult a doctor before using this sleep aid.

It is important to remember that if you are suffering from severe sleepiness, you may have an underlying condition that is causing you to struggle with falling asleep or staying asleep.

You should consult a doctor if you are experiencing continuous sleeplessness because it could be something very serious that needs to be treated.

How Does Kirkland Sleep Aid Work?

This sleep aid is made of doxylamine succinate, a well-known antihistamine.

Antihistamines are used to help users get rid of symptoms that are common in allergies and colds.

One of the main functions of histamines is to regulate sleep and wakefulness.

When you take an antihistamine it blocks many histamine receptors, including the ones that regulate sleep. This can result in users feeling drowsy.

While this could potentially work, many health care practitioners do not recommend using antihistamines as a sleep aid.

Kirkland Sleep Aid Ingredients

This product relies on one ingredient to initiate falling asleep. The main active ingredient is called doxylamine succinate, a common antihistamine.

Other ingredients are:

  • Dicalcium Phosphate
  • FD&C Blue #1 Aluminum Lake
  • Magnesium Stearate
  • Microcrystalline Cellulose
  • Sodium Starch Glycolate

Kirkland Sleep Aid Side Effects

The company claims that this product has no side effects.

However, this product is made up of different chemicals that can cause some serious reactions.

Doxylamine succinate can cause dry mouth, dizziness, drowsiness, nausea and vomiting, restlessness, trouble urinating, blurred vision, and confusion.

While many of the extra ingredients serve no major purpose, they do come with some major side effects.

Ingredients such as dicalcium phosphate can cause symptoms such as kidney stones, fatigue, muscle weakness, headaches, diarrhea, frequent urination, confusion, constipation, irregular heart rate, and even comas.

Sodium starch glycolate can cause symptoms of a serious allergic reaction, overdose, and liver damage.

If you experience difficulty breathing, hives, face or throat swelling, diarrhea, sweating, nausea, vomiting, abdominal pain, dark urine, or itchy skin, you should seek medical attention immediately to avoid further complications.

Kirkland Sleep Aid Dosage

The recommended dosage of this product is to take one tablet an half hour before you are going to sleep. This product can be taken by anyone over the age of 12.

You should only increase the dose if you are under the instructions of a doctor.

If you are still struggling to fall asleep after two weeks of using this sleep aid, you should go see a doctor because you may have a more serious sleep issue that needs to be treated.

Kirkland Sleep Aid Reviews

The Kirkland Sleep Aid reviews are conflicting. Almost half of the reviews simply said that it does not work at all.

Other reviewers had more complicated results with the product.

Some would find that they were able to fall asleep a bit faster, but they would be drowsy the next day. This would make work and school very difficult to get through.

Many even said that the next day, drowsiness was worse than any feeling they had from insomnia.

A lot of customers said that the tablet would make them feel so nauseous and dizzy that they didn’t feel comfortable continuing to use the product.

Where To Buy Kirkland Sleep Aid

This product can be purchased at Costco and retail sites like Amazon.


Does Kirkland Sleep Aid Really Work Or Is It A Scam?

Based on the customer reviews and the science behind this Kirkland Sleep Aid, we do not believe it works. However, we also do not believe it is entirely a scam.

Costco is a well-known and reputable company. When you purchase the product, you do receive a sleep aid in the mail.

Even though the product is more of an antihistamine than a sleeping pill, it does have the side effect of drowsiness which can be considered a sleep aid.

However, the first task of an antihistamine is to rid users from symptoms of a cold or allergy and sedation. Drowsiness is only a side effect, which is not ideal for someone who is just looking for a sleep aid.

The manufacturer lacks transparency on the website.

There is a small blurb of information, but there is no information regarding how much of each ingredient is in the product and what all of those additional ingredients do for users.

Furthermore, the company lists this product as having no side effects, which is incredibly deceiving.

The side effects of this product are anything but mild and should be listed. Many of the ingredients can lead to some serious reactions and conditions such as kidney stones and even a coma.

There are so many sleep aids on the market that can prove to be safer and better alternatives than Kirkland Sleep Aid. Better go for sleeping pills that are made with natural ingredients, backed up with scientific evidence and clinical studies, and have little to no serious side effects.

We believe that if sleeplessness is what you are suffering from, antihistamines aren’t the best choice to achieve a good night’s rest.

Latest Comments:

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by Mauricio Pagel review for Kirkland Sleep Aid

Some of the ingredients are known allergens. Be careful.

by Lida Pickard review for Kirkland Sleep Aid

The product’s effects are not habit forming but long-lasting. That can be annoying because I still feel drowsy during the day.

by Scott A. review for Kirkland Sleep Aid

How could I sleep if I keep on waking up in the middle of the night to take a piss? Not recommended.

by Carleen Forbes review for Kirkland Sleep Aid

I was FORCED to sleep so I could take my mind off headaches after taking this product.

by Howard Dowd review for Kirkland Sleep Aid

I might have ordered a bad batch. I experienced restlessness and anxiety, which made falling asleep difficult.

by Beckie E. review for Kirkland Sleep Aid

The product does induce sleep. However, I also had bouts of nausea. I wonder if it’s something about the product’s ingredients.