We evaluated 12 popular sleep supplements through the lens of muscle growth and recovery. Every rating is based on published clinical evidence, bioavailability data, and practical dosing. This is what actually works — and what's marketing.
| Supplement | Price | GH | Testosterone | Sleep Quality | Recovery | Cortisol | Evidence | Dosing | Stacks Well | Bioavailability | Score |
|---|---|---|---|---|---|---|---|---|---|---|---|
| ZMAOur Pick | $18 | 9 | 8 | 8 | 8 | 8 | 8 | 8 | 9.3 | ||
| Magnesium GlycinateOur Pick | $15 | 7 | 7 | 9 | 9 | 8 | 9 | 9 | 9.2 | ||
| Ashwagandha KSM-66Best Value | $20 | 6 | 8 | 8 | 8 | 9 | 9 | 8 | 9.0 | ||
| Casein Protein | $35 | 8 | 6 | 7 | 9 | 6 | 8 | 8 | 8.2 | ||
| Glycine | $12 | 5 | 4 | 8 | 8 | 7 | 8 | 9 | 8.0 | ||
| L-Theanine | $14 | 3 | 3 | 8 | 6 | 8 | 8 | 9 | 7.6 | ||
| Tart Cherry Extract | $28 | 6 | 4 | 7 | 8 | 7 | 7 | 7 | 7.5 | ||
| Melatonin | $8 | 5 | 3 | 8 | 6 | 5 | 9 | 8 | 7.3 | ||
| L-Tryptophan | $16 | 5 | 4 | 7 | 6 | 6 | 7 | 7 | 7.1 | ||
| Phosphatidylserine | $32 | 5 | 6 | 6 | 7 | 8 | 7 | 6 | 6.8 | ||
| 5-HTP | $15 | 4 | 3 | 7 | 5 | 6 | 7 | 8 | 6.5 | ||
| Valerian Root | $10 | 3 | 3 | 6 | 5 | 6 | 6 | 6 | 6.2 |
Our Top Picks
Magnesium Glycinate
Highest bioavailability, strongest evidence for sleep quality and muscle recovery. The foundation of any sleep-for-gains stack.
Ashwagandha KSM-66
Drops cortisol 30%, boosts testosterone 15% in studies. One supplement that attacks muscle growth from two angles.
ZMA
Zinc + Magnesium + B6 in one formula. The OG muscle recovery stack with direct GH support from clinical research.
Methodology
Products were selected based on popularity among strength athletes and published clinical evidence. Each feature was scored 1–10 using peer-reviewed research, bioavailability data, and practical dosing considerations. Scores weight sleep quality and recovery most heavily. This table is updated monthly as new research and products enter the market. Prices reflect typical 30-day supply costs from major US retailers as of January 2026.