Why a “sleep stack”?
Because sleep is multi-causal. The safest stacks combine low-risk inputs that reinforce the same outcome (circadian alignment + reduced arousal).
| Category | Risk | Notes |
|---|---|---|
| Sedatives / alcohol | Moderate–High | Can worsen sleep architecture and next-day function |
| Stimulants | Moderate | Often help daytime performance while harming sleep |
| Supplements | Variable | Check Interactions Database |