Brand · NIH DSLD snapshot 2026-08-10
Sleep Soundly magnesium supplements: 1 product, 1 mg of magnesium per serving
1 Sleep Soundly magnesium product in 1 form, led by citrate (1); median 1 mg of magnesium per serving. Inside: each product's mg and price.
Sleep Soundly files one on-market magnesium label in NIH DSLD, Sleep Soundly Melatonin with Magnesium 5 mg Berry Flavor, declaring 1 mg of elemental magnesium per serving as citrate; no capsule verdict is computable. Snapshot 2026-08-10.
computed from filed labelsData release 2026-08-10-f441aa9f · registry snapshot 2026-08-10 · latest price observation 2026-11-02 · chemistry 2026-10-17
Elemental: The magnesium itself; the rest of the compound weight is the partner molecule.
Size 000: The largest standard capsule, about 1,100 mg of powder at 0.8 g/mL, the top of the usual 0.6–0.8 range.
Estimated salt mass versus assumed capsule capacity
No Sleep Soundly capsule label has a single resolved salt and one declared amount as of 2026-08-10, so no capsule verdict is counted.
computed with assumption| Verdict | Sleep Soundly | All audited capsule labels |
|---|---|---|
| Fits size 0 or 00 | no audited capsule label | 82 of 137 |
| Needs size 000 | no audited capsule label | 47 of 137 |
| Exceeds size 000 | no audited capsule label | 8 of 137 |
Source · NIH DSLD labels; mass balance · recognized salt only; snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
Which magnesium salts does Sleep Soundly use, and how much compound does each need?
Sleep Soundly files one salt, citrate across 1 label; for 100 mg of magnesium the lightest of them needs 619 mg of compound against 885 mg for the heaviest.
computed| Salt | Labels | Elemental fraction | Compound per 100 mg Mg |
|---|---|---|---|
| citrate | 1 | 11.3–16.2% | 619–885 mg |
Source · NIH DSLD labels · snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
How do Sleep Soundly's prices compare within each salt?
No Sleep Soundly label has a matched US retail price in our price collection as of 2026-11-02, against 1 label on file.
computed| Label | Salt | Per 100 mg | Same-salt median | Observed |
|---|---|---|---|---|
| No matched price as of 2026-11-02 |
Source · Amazon via licensed data provider; NIH DSLD · unique ASIN × date; prices observed 2026-10-26 to 2026-11-02 · release 2026-08-10-f441aa9f · CSV · method
Does the FDA hold recall or adverse event records naming Sleep Soundly?
The FDA enforcement data queried 2026-10-19 holds 0 recall records naming Sleep Soundly, 0 of them about a magnesium product. CAERS holds no report naming the brand as of 2026-10-19, against 143 of 273 brands here that have any.
measured| Recall | Date | Reason | Status |
|---|---|---|---|
| No record as of 2026-10-19 |
FDA record register and matching method
Source · openFDA enforcement and CAERS · queried 2026-10-19 · release 2026-08-10-f441aa9f · CSV · method
What else goes into Sleep Soundly's labels, and what do they declare?
0 of 1 Sleep Soundly labels list magnesium stearate, 0 use a gelatin shell and 0 a cellulose shell; 4 distinct filed declarations appear across them. Listed ingredients are filed names, not quantities.
measured| Filed entry | Labels |
|---|---|
| citric acid | 1 of 1 |
| natural flavors | 1 of 1 |
| water | 1 of 1 |
| Vegetarian | 1 of 1 |
| Adult (18 - 50 Years) | 1 of 1 |
| Women (not pregnant or lactating) | 1 of 1 |
| Gluten Free | 1 of 1 |
Source · NIH DSLD labels · snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
Which Sleep Soundly labels are on file, and what does each declare?
Sleep Soundly has 1 on-market label in the NIH DSLD snapshot 2026-08-10, with a median declared amount of 1 mg of elemental magnesium per serving; each row opens the label's own arithmetic.
measured| Label | Declared per serving | Salt | Capsule verdict |
|---|---|---|---|
| Sleep Soundly Melatonin with Magnesium 5 mg Berry Flavor | 1 mg | citrate | not applicable |
Source · NIH DSLD labels · snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method