The Sleep & Calm Stack centers on magnesium , one of the best-studied minerals for sleep quality. Muscle Relax+ delivers 400mg elemental magnesium per serve from glycinate plus amino acid chelate forms, designed for deeper sleep and calmer evenings.

A 2025 meta-analysis (Schuster et al., PubMed 39615118) found magnesium supplementation improved subjective sleep quality across multiple RCTs. Many WIIP customers take it 1-2 hours before bed.

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Pair with NMN Boost+ if cellular energy decline is part of your sleep/recovery story (NAD+ levels drop 40-50% by age 50, Massudi et al., PMC4112140).

Read more: Magnesium for Sleep NZ · Glycinate vs Citrate vs Oxide.