Source comparison
Best MK-677 Dosage for Sleep Quality: Comparison
5–10mg Minimal SWS increase (10–15 minutes); may improve REM latency slightly Negligible water retention; low appetite stimulation Individuals highly sensitive to ghrelin agonists or testing tolerance Limited clinical data at this range; mostly anecdotal Sub-t
This comparison does not assign a generated winner or score.
- 5–10mg
- Minimal SWS increase (10–15 minutes); may improve REM latency slightly
- Negligible water retention; low appetite stimulation
- Individuals highly sensitive to ghrelin agonists or testing tolerance
- Limited clinical data at this range; mostly anecdotal
- Sub-therapeutic for most adults. Unlikely to produce meaningful sleep improvements
- 12.5–15mg
- 30–40 minute SWS extension; REM latency reduction of 15–25 minutes
- Mild water retention (1–2kg); moderate appetite increase; rare morning grogginess
- First-time users, individuals prioritizing sleep over anabolic effects, those prone to insulin resistance
- Supported by JCEM 2008 study showing 50% SWS increase at 12.5mg in elderly subjects
- Optimal sleep-specific dose for most individuals. Maximizes benefit-to-side-effect ratio
- 20–25mg
- 40–50 minute SWS extension; peak growth hormone pulsatility; may fragment sleep in second half of night in sensitive individuals
- Moderate to significant water retention (2–4kg); increased fasting glucose; appetite dysregulation; joint stiffness in 20–30% of users
- Individuals above 90kg body weight, those combining sleep and anabolic goals, experienced users
- Standard dose in most growth hormone studies; sleep benefits documented but side effects limit long-term adherence
- Effective but often overshoots sleep optimization. Side effects can paradoxically worsen sleep quality after 8–12 weeks
- 30mg+
- Diminishing returns on SWS; increased risk of cortisol rebound and early-morning wake episodes
- Significant water retention; elevated fasting glucose and insulin resistance markers; daytime lethargy
- Not recommended for sleep-focused protocols
- No clinical trials support doses above 25mg for sleep improvement
- Exceeds therapeutic window. Risk outweighs benefit for sleep-specific applications