Your sleep stack is probably worth a second look.
Magnesium form matters. Melatonin dose matters. Timing matters. Scan the stack you already take and check it against the sleep research instead of the sleep aisle.
Scan your stack, free Free. No credit card. Three minutes.
What the evidence shows.
For sleep onset and circadian timing, the research on melatonin points to small doses, often in the 0.3 to 0.5 mg range, rather than the 3 to 10 mg sold on most shelves. Foundational work on low-dose melatonin came out of MIT (Zhdanova, Wurtman, and colleagues), and later reviews echo it: more is not better here.
About 70 million Americans report sleep problems, and the sleep aisle is one of the most over-supplemented corners of the store. Once you can see your own stack against the research, the small corrections (form and dose) tend to be the ones that matter.
A note on safety. Persistent insomnia can have treatable underlying causes. If it does not improve, see a clinician; this is information, not a diagnosis.
What NuLevels checks.
Melatonin above the studied dose?
The cleaner sleep-onset results sit near 0.3 to 0.5 mg, while the shelf is full of 3, 5, and 10 mg gummies. Higher is not stronger here. NuLevels reads the dose on each label so you can see where you stand.
Magnesium in the right form for sleep?
Magnesium oxide is cheap, common, and one of the least useful for sleep. Glycinate and threonate behave differently. NuLevels labels the form on every product you scan.
Stacking calming agents blind?
Melatonin, L-theanine, apigenin, magnesium, ashwagandha. Many people take three or four at once with no view of total dose or timing. NuLevels totals each across your products.
From bottles on the counter to a clear picture.
Scan your sleep stack. NuLevels reads every label and flags wrong forms and wrong doses the moment they appear: melatonin above the studied range, magnesium oxide, anything stacked on top of itself.
It labels the magnesium form and reads the melatonin dose, so you can see exactly what you are taking and when.
Every nutrient is totaled across all your products and shown in one view. Share it with your doctor or sleep specialist in one tap.
Test for this.
The Functional Foundation panel checks magnesium, vitamin D, thyroid, and methylation, four common nutrient drivers of disrupted sleep.
See the panel →Premium unlocks your AI Condition Coach.
Ask about your own record in plain language: “Is my melatonin dose above the studied range?” “Glycinate or threonate for sleep?” The coach answers from the stack you built and the labels you scanned, not generic advice. It is information, not a diagnosis.
See Premium →Your stack, finally understood.
Free in three minutes. No credit card.