Sleep support
Yu Sleep
Sublingual sleep drops for adults who lie awake with a busy mind, wake during the night, or feel foggy the morning after a high-dose melatonin gummy. Yu Sleep uses a deliberately low 0.9 mg dose of melatonin and surrounds it with calming nutrients and botanicals.†
- Format
- Liquid drops, 2 mL serving (two droppers) held under the tongue
- For
- Adults (18+)
- Made in
- USA, GMP-certified facility (manufacturer's claim)
- Price
- US$49 to $69 per bottle depending on bundle (2, 3 or 6 bottles)
- Guarantee
- 60-day money-back guarantee (return shipping at customer's expense)
- Our review
- yusleepsupplements.com
- Where to buy
- Through the official vendor link on our review site. Three Whole Health does not sell this product.
What is in Yu Sleep
| Ingredient | Why it is included |
|---|---|
| Melatonin, 0.9 mg | Signals night-time to the body clock; the low dose is chosen to limit next-day grogginess. See why a 0.9 mg dose makes sense. |
| Magnesium glycinate | A well-absorbed, gentle form of magnesium, a mineral involved in nervous-system relaxation. |
| GABA | The body's main calming neurotransmitter, included to support a settled feeling at bedtime. |
| L-theanine | An amino acid from green tea associated with relaxed alertness without sedation. |
| 5-HTP | A precursor to serotonin, which the body converts to melatonin. |
| Apigenin | The flavonoid found in chamomile that is linked to its traditional calming use. |
| Lemon balm extract | A traditional botanical used for restlessness and occasional sleeplessness. |
| Red tart cherry | A natural dietary source of melatonin and related compounds. |
| Vitamins B6 and B2 | Cofactors in the pathways that produce serotonin and melatonin. |

Why sublingual drops
Holding the liquid under the tongue lets part of the dose absorb through the oral mucosa rather than waiting for digestion. In practice this means a faster onset than a capsule, and it makes the low 0.9 mg dose easier to adjust: you can take a single dropper if a full serving feels like too much.
How to use
- Take two droppers (2 mL) under the tongue 20 to 30 minutes before bed.
- Hold for 30 seconds, then swallow.
- Start with one dropper for the first few nights if you are sensitive to melatonin.

Talk to your clinician first if you are pregnant or nursing, take antidepressants or other serotonergic medication (5-HTP may interact), use sedatives or blood-pressure medication, or have a diagnosed sleep disorder. Do not drive or operate machinery after taking Yu Sleep.
Quality and manufacturing
The manufacturer states that Yu Sleep is made in the United States in a GMP-certified facility. We treat manufacturing statements as vendor claims and note on our review site which ones are documented. See How We Work for how we assess them.
Frequently asked questions
Is 0.9 mg of melatonin enough?
For many adults, yes. Studies suggest that doses in the 0.3 to 1 mg range can raise blood melatonin to typical night-time levels, while higher doses are more often associated with next-day drowsiness. Yu Sleep is formulated so the other ingredients do part of the work rather than relying on melatonin alone.
Will I become dependent on it?
Melatonin is not considered habit-forming in the way sedative medications are, but we still recommend using Yu Sleep as part of a consistent bedtime routine rather than as a substitute for one.
Where can I buy Yu Sleep?
Yu Sleep is sold only through the manufacturer's official website. Our review site, yusleepsupplements.com, links to it. Three Whole Health does not sell Yu Sleep and may earn a commission on purchases made through that link.
† These statements have not been evaluated by the Food and Drug Administration. The products reviewed on this site are not intended to diagnose, treat, cure, or prevent any disease.