A complete formula for REM Sleep + Deep Sleep.

Ali Jang

Sleep

Yin Sleep earns mixed-to-positive reviews: many users report faster sleep onset, deeper REM and deep sleep, and clearer mornings, while others see no improvement or even worsened metrics and vivid or anxious dreams. Reviews praise all‑natural ingredients, easy capsules, and tasteful, travel‑friendly packaging, but note inconsistent efficacy, three‑capsule dosing, bitter flavor for some, and occasional grogginess or nausea.

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