YU Sleep is a nightly liquid dropper formula built around nine named ingredients — including a disclosed 0.9mg melatonin dose, GABA, and L-Theanine — positioned to support relaxation, nighttime wind-down and healthy sleep rhythm.
Worth knowing upfront: most ingredients sit inside a 637mg proprietary blend with no individual amounts, and the formula includes 5-HTP, which carries real interaction considerations with certain medications. Details below.

Four things worth confirming before ordering any sleep support supplement.

A brand claim, not independently audited by us.

Facility registration is a manufacturing requirement, not FDA approval of the product itself.

Brand-stated Good Manufacturing Practice compliance for the production facility.

Nine ingredients named; most amounts are grouped into one proprietary blend.

YU Sleep is marketed as a nightly liquid dropper dietary supplement, sold in 2 fl oz (60ml) bottles, combining Melatonin, GABA, L-Theanine, Magnesium Glycinate, 5-HTP, Apigenin, Lemon Balm Extract, Red Tart Cherry Juice Concentrate, and Vitamins B2 and B6. The brand frames it around supporting relaxation, nighttime wind-down and healthy sleep rhythm.
Melatonin's dose (0.9mg) is disclosed individually; the other eight ingredients sit inside a 637mg proprietary blend with no individual amounts.
Read the full explainer or see how it works.
Per the brand's own positioning, the formula is framed around four support angles.

GABA, L-theanine, apigenin and lemon balm are positioned around supporting the body's natural wind-down process.
Melatonin is positioned around supporting the body's sleep-wake timing signals.
Magnesium glycinate and L-theanine are positioned around a calmer before-bed state.
5-HTP is positioned around serotonin production, tied to mood and sleep-wake regulation.
All nine ingredients are named clearly. Evidence grades below reflect general research on each ingredient, not a trial of the finished formula.
A well-studied sleep-rhythm ingredient; the 0.9mg dose here is comparatively conservative compared to many competing products.
Associated with calming activity in the nervous system; commonly included in nighttime formulas for relaxation support.
An amino acid with reasonable research for promoting calm focus and relaxation without sedation.
A gentle, well-absorbed form of magnesium commonly used for muscle and nervous-system relaxation support.
Involved in serotonin production; reasonable research base for mood and sleep-wake regulation, though it carries real interaction risk with certain medications — see our safety note below.
A traditional calming herb; thin direct clinical evidence for sleep outcomes specifically.
A plant compound found in chamomile, commonly discussed for calming properties, with limited direct clinical trial evidence.
Contains natural compounds of interest for sleep support, though evidence specific to this exact use remains limited.
General nervous-system-support vitamins; not sleep-specific ingredients on their own.
The brand includes these two bonus guides on qualifying orders. We have not independently reviewed their content — they are a brand-supplied extra, not a core part of the YU Sleep formula itself.


Adapted from the brand's own positioning and general safety considerations for this type of formula.
Fall asleep but wake during the night or too early, feel tired but mentally alert at bedtime, have tried melatonin alone without success, and take no medications that interact with calming supplements.
Take antidepressant, anti-anxiety, sedative, or blood pressure medication; are pregnant or nursing; have symptoms of sleep apnea (loud snoring, gasping); or manage an existing health condition.

YU Sleep is advertised with a 60-day money-back guarantee, per the guarantee badge included with the product's own marketing materials. We recommend confirming the exact current terms directly on the official checkout page before ordering, including the return window and whether shipping costs are refundable.
Calendar your refund deadline as soon as your order arrives so you do not lose track of the window. See our full refund policy walkthrough.
Check Current Guarantee TermsThese reflect the brand's stated wellness goals, not independently verified outcomes. Individual results vary.
The formula's stated positioning, per the brand's own framing.
Positioned especially for people who wake during the night.
Tied to GABA, L-theanine, apigenin and lemon balm.
Tied especially to the disclosed 0.9mg melatonin dose.
A brand claim, not independently verified by us.
One simple liquid dose before bed.
0.9mg, a comparatively conservative amount.
No single vague blend name hiding every compound.
May be easier for people who dislike swallowing pills.
Brand-supplied digital bonuses on qualifying orders.
A defined refund window from the original purchase date.
Rather than letting conflicting information go unmentioned.
Melatonin dose is disclosed, but the rest sit in a 637mg proprietary blend.
5-HTP and other calming ingredients can interact with antidepressants and other medications.
We found conflicting information (1-2 droppers vs. 2 full droppers) — follow your own label.
Building a nighttime routine matters more than any single dose.
Especially important if you take medication or manage a sleep-related health condition.
Calendar it the day your order arrives so you don't lose track of the 60-day window.
YU Sleep is a nightly liquid dropper formula built around nine named ingredients, positioned to support relaxation, nighttime wind-down and healthy sleep rhythm.
Nine ingredients are named: Melatonin (0.9mg, disclosed individually), GABA, L-Theanine, Magnesium Glycinate, 5-HTP, Apigenin, Lemon Balm Extract, Red Tart Cherry Juice Concentrate, and Vitamins B2 and B6. Everything except the melatonin sits inside a 637mg proprietary blend with no individual amounts disclosed.
No, 0.9mg is a comparatively conservative, low dose. Many sleep products use considerably more, so this is worth noting as a genuine positive if you prefer a gentler melatonin amount.
We found conflicting information. Our provided marketing materials say 1 to 2 droppers (about 1mL), while an independent third-party review of the sales page describes a serving size of 2mL, or 2 full droppers. Confirm the exact serving size printed on your own bottle's label before use.
Possibly. YU Sleep contains 5-HTP, which can interact with antidepressants (including SSRIs), and several other calming ingredients. If you take antidepressant, anti-anxiety, sedative, or blood pressure medication, talk to your doctor before starting.
YU Sleep is backed by a 60-day money-back guarantee, per the guarantee badge included with the product materials.
The brand positions it as non-habit-forming and designed to avoid next-day grogginess, though individual sensitivity to any of the calming ingredients can vary.
No. YU Sleep is a dietary supplement, not a treatment for insomnia, sleep apnea, or any other diagnosed medical condition, and it is not a substitute for prescribed medication.
Background reading on the individual ingredients named in the YU Sleep formula.
Independent explainers on the melatonin dose, the medication-interaction considerations, and our honest overall take.
Per-bottle price drops on larger bundles, per the brand's current sales page. Confirm exact current pricing directly at checkout before ordering.






The 6-bottle bundle carries the lowest per-bottle price with free shipping and bonuses.
See The Current YU Sleep OfferBacked by a 60-day money-back guarantee. Confirm current terms on the official checkout page.