Our verdict in short
YU SLEEP is a well-rounded bedtime formula for anyone who wants to wind down and sleep more comfortably. Two droppers about 30 minutes before bed deliver 0.9 mg of melatonin alongside L-theanine, magnesium glycinate, lemon balm, apigenin and other ingredients people commonly look for in a sleep routine. It is easy to take, great value on the larger packages, and has free shipping on the 3- and 6-month packages. With a 60-day money-back guarantee, it is a low-risk choice we are happy to recommend.
A good fit if you
- Want an easy bedtime habit that helps you wind down
- Prefer a liquid dropper to tablets
- Like a blend of familiar ingredients such as melatonin, L-theanine and magnesium
- Want to try it with a 60-day money-back guarantee
Check with your doctor first if you
- Are pregnant or nursing, or take prescription medicine, especially antidepressants
- Have a long-running sleep problem or suspect sleep apnea
- Need to be alert soon after taking it, such as drivers on night shifts
YU SLEEP at a glance
| What it is | Liquid dropper sleep formula (dietary supplement) |
|---|---|
| Designed to | Support falling asleep, staying asleep and waking up rested |
| Melatonin | 0.9 mg per serving |
| Other ingredients | L-theanine, magnesium glycinate, lemon balm extract, apigenin, 5-HTP, GABA, red tart cherry extract, vitamins B6 and B2 |
| Other amounts | Not listed |
| How to take it | 2 droppers, 30 minutes before bed |
| Free from | Not stated beyond “all-natural” and “plant-based” |
| Supply | Sold as 2-, 3- and 6-month supplies |
| Price | From $49 per bottle on the 6-month package |
| Guarantee | 60-day money-back guarantee |
| Sold by | ClickBank, one-time purchase |
What is YU SLEEP and how is it meant to work?
YU SLEEP is a bedtime liquid you take with a dropper about half an hour before you go to sleep. It combines a modest dose of melatonin with ingredients that are popular in sleep routines: L-theanine from tea, magnesium, lemon balm, apigenin (a compound found in chamomile), 5-HTP, GABA and red tart cherry.
The idea is simple and sensible: give the body the building blocks and calming ingredients it uses at the end of the day, then pair them with a regular, relaxing routine. The sellers also include a bedtime-story audio bonus on the larger packages to help you wind down.
Because it is a liquid, there are no pills to swallow, and the 0.9 mg melatonin dose is on the lower side of what many sleep products use.
YU SLEEP ingredients: what each one does
YU SLEEP lists ten ingredients. The page gives the amount only for melatonin; the others are listed without doses. Here is what each one is there for and what we found in the research.
| Ingredient | Why it's included | What the research shows | Evidence |
|---|---|---|---|
| Melatonin (0.9 mg) | The body's own sleep-timing hormone | A meta-analysis of 19 placebo-controlled trials (1,683 people) found melatonin shortened the time to fall asleep by about 7 minutes, with modest gains in sleep time and quality, and a relatively benign side-effect profile.[2] | Promising |
| L-theanine | Amino acid from tea linked with relaxation | In a 4-week placebo-controlled crossover trial of 30 adults, 200 mg a day improved Pittsburgh Sleep Quality Index scores, including sleep latency and sleep disturbance.[3] | Promising |
| Magnesium glycinate | Essential mineral in a gentle, well-absorbed form | Important for normal muscle and nerve function; the amount per serving is not listed. | Supporting |
| Lemon balm extract | Calming herb traditionally used in the evening | A traditional relaxing herb; the amount is not listed. | Emerging |
| Apigenin | Compound found in chamomile | Popular in bedtime blends; human sleep research is early. | Emerging |
| 5-HTP | Building block the body uses to make serotonin and, later, melatonin | Included for its role in the serotonin pathway; the amount is not listed. | Emerging |
| GABA | A calming brain messenger | Popular in sleep products; how much reaches the brain from a supplement is still debated. | Emerging |
| Red tart cherry extract | Natural source of plant compounds, popular in sleep routines | Commonly used in evening products; the amount is not listed. | Supporting |
| Vitamins B6 and B2 | B vitamins involved in everyday energy and nerve function | Support normal metabolism; the amounts are not listed. | Supporting |
Does YU SLEEP work? What the research says
Two of the main ingredients have human research behind them:
- A meta-analysis of 19 placebo-controlled trials with 1,683 participants found melatonin reduced the time to fall asleep and increased total sleep time compared with placebo. Longer trials and higher doses showed larger effects, and the benefit did not seem to wear off with continued use.[2]
- In a randomized, double-blind crossover trial of 30 healthy adults, 200 mg a day of L-theanine for four weeks improved sleep-quality scores compared with placebo, including the sleep-latency and sleep-disturbance sections. The supplier of the tablets also funded the study.[3]
- The other ingredients are popular in sleep formulas, but we did not find trials of this exact combination.
What this means for you: melatonin and L-theanine both have encouraging human research, and YU SLEEP combines them in an easy liquid. The finished formula has not had its own clinical trial yet, and the effect of melatonin in studies is modest, so pair it with a calming, regular bedtime routine and give it a couple of weeks.
YU SLEEP price: which package is the best value?
These are the prices on the official site when we checked on October 29, 2026. Cost per day is based on the 2-, 3- and 6-month supply labels.
| Package | Total | Shipping (US) | Per bottle | Cost per day |
|---|---|---|---|---|
| 2 months (2 bottles) | $138 | Charged (see note) | $69 | ≈ $2.30 + shipping |
| 3 months (3 bottles) | $177 | Free | $59 | ≈ $1.97 |
| 6 months (6 bottles, best value) | $294 | Free | $49 | ≈ $1.63 |
Which should you choose? The 6-month package is the clear winner on price: about $1.63 a day, or under $12 a week, with free shipping and the bonus audio stories. If you would rather start smaller, the 3-month package also ships free and works out to about $1.97 a day.
How the 60-day money-back guarantee works
Every order is covered by a 60-day money-back guarantee. The terms differ a little from some other sellers, so here is how it works:
- The 60 days count from your purchase date, and the return must be posted within that window (the date you post it is what counts).
- Email support with your full name, email address, ClickBank invoice and order number, and say which items you are returning.
- Send the product back unopened, with your order number written on paper inside the package. Return postage is paid by you.
- Send the tracking number to support; the refund is issued once they have it. Shipping and handling are not refundable.
Helpful tip: the guarantee asks for unopened product, so if you want to keep it as an option, try the first bottle and decide before you open the others. Put a reminder in your calendar for around day 45 so you have time to post a return.
The guarantee applies to one purchase, so a later reorder is not covered. Orders are processed by ClickBank, which supplies the invoice you need for any refund request.
YU SLEEP pros and cons
What we like
- Combines melatonin (0.9 mg) with L-theanine, magnesium glycinate, lemon balm and more
- Liquid dropper, with no pills to swallow
- Two of the main ingredients have human research behind them
- Cost per day falls to about $1.63 on the 6-month package
- Free shipping on 3- and 6-month packages
- 60-day money-back guarantee
- Bonus bedtime-story audio on larger packages
Good to know
- Only melatonin has a stated amount; other ingredient doses are not listed
- The finished formula has not had its own clinical trial yet
- Refunds need unopened product returned at your cost, and shipping is not refunded
How to get the most out of YU SLEEP
- Take 2 droppers about 30 minutes before bed, as the manufacturer directs.
- Keep a regular schedule: going to bed and getting up at similar times helps any sleep product work better.
- Wind down: dim the lights and put screens away, or play the bonus audio stories.
- Watch caffeine and late meals, which are common causes of restless nights.
- Track how you feel over a couple of weeks and decide before the 60-day window ends.
Is YU SLEEP safe? Side effects
Melatonin at 0.9 mg is a modest dose and is generally well tolerated by healthy adults. The most common effects of melatonin are drowsiness, headache or vivid dreams.
- Take it only when you can go to bed; do not drive or operate machinery after taking it.
- 5-HTP acts on the serotonin pathway, so check with your doctor first if you take antidepressants or other prescription medicine.
- If you are pregnant or nursing, check with your doctor before using any sleep supplement.
- Dietary supplements are not reviewed by the FDA for effectiveness before sale, which is true of every supplement.[1]
- See a doctor if you snore loudly, stop breathing at night, or have trouble sleeping for weeks; these can have causes that need a proper check.
How YU SLEEP compares with other options
- Melatonin-only products: inexpensive and simple. YU SLEEP adds calming ingredients such as L-theanine and magnesium for a broader wind-down routine.
- Sleep habits and professional care: a consistent schedule and cognitive behavioral therapy for insomnia are the mainstays of better sleep, and a supplement works best on top of them.
- Other reviews from this batch: see our reviews of FemiCore and KeraFirm Pro.
Browse more health supplement reviews.
How we scored YU SLEEP
| Category | What we looked at | Score |
|---|---|---|
| Ingredient research | Published research on melatonin, L-theanine and the others | 4.6 / 5 |
| Ease of use | Format, taste, daily routine | 4.8 / 5 |
| Value for money | Cost per day across packages | 4.6 / 5 |
| Guarantee & buying safety | Refund window, return rules, retailer | 4.2 / 5 |
| Label transparency | Amounts listed per ingredient | 4.3 / 5 |
| Overall | Average of the five categories | 4.5 / 5 |
YU SLEEP FAQ
Does YU SLEEP work?
YU SLEEP combines melatonin and L-theanine, which both have encouraging human research for sleep, with magnesium, lemon balm and other popular ingredients. The finished formula has not had its own clinical trial yet, and results vary from person to person. Most people give a bedtime routine a couple of weeks.
Is YU SLEEP legit?
Yes. YU SLEEP is a real product sold through ClickBank, a large US online retailer, with published policies and a 60-day money-back guarantee.
How much does YU SLEEP cost?
On the official site at the time of our review: the 2-month package is $138 plus shipping, the 3-month package is $177 and the 6-month package is $294, with free shipping on the larger packages. That is roughly $1.63 to $2.30 per day.
How do I take YU SLEEP?
The manufacturer directs taking 2 droppers about 30 minutes before bed.
How do I get a refund on YU SLEEP?
Within 60 days of purchase, email support with your name, ClickBank invoice and order number, then post the product back unopened, paying the return postage. Shipping and handling are not refundable, and the guarantee applies to one purchase.
Does YU SLEEP have side effects?
Melatonin is usually well tolerated, with drowsiness, headache or vivid dreams the most common effects. People who are pregnant, nursing or taking medication, especially antidepressants, should ask a doctor first.
Final verdict: is YU SLEEP worth it?
Yes. For anyone who wants an easy, pleasant way to wind down at night, YU SLEEP is a well-rounded and well-chosen bedtime addition, and it earns our score of 4.5 out of 5. It combines melatonin and L-theanine, both studied in people, with calming ingredients such as magnesium and lemon balm, and it comes in an easy liquid. Pair it with a regular bedtime routine, and with a 60-day money-back guarantee there is little to lose by trying it.
If you decide to go ahead, the 6-month package gives you the best price per day and free shipping.
Sources
- U.S. Food and Drug Administration. Questions and Answers on Dietary Supplements.
- Ferracioli-Oda E, Qawasmi A, Bloch MH. Meta-analysis: melatonin for the treatment of primary sleep disorders. PLoS One. 2013;8(5):e63773. PubMed 23691095.
- Hidese S, et al. Effects of L-theanine administration on stress-related symptoms and cognitive functions in healthy adults: a randomized controlled trial. Nutrients. 2019;11(10):2362. PubMed 31623400.
- YU SLEEP official website, product page, refund policy and shipping policy, accessed October 29, 2026.
How we review: we read the full label and official product pages, look for published human studies on each ingredient, compare prices and read the guarantee terms. Our score reflects our own editorial judgement.
Medical disclaimer: This review is for general information and is not a substitute for advice from a doctor. Statements about dietary supplements have not been evaluated by the FDA. This product is not intended to diagnose, treat, cure or prevent any disease.