Sleeptastic

Sleeptastic is a free sleep optimization platform that uses peer-reviewed scientific research to help users understand and improve their sleep patterns. Key features include:

• Caffeine impact analysis (with pharmacokinetics modeling)
• Meal timing effects on heart rate during sleep
• Exercise timing recommendations for optimal recovery
• Personalized bedtime calculations based on circadian rhythms
• Research-backed insights with links to scientific studies

The tool is particularly valuable for:

• Health-conscious individuals who can't afford expensive sleep trackers like Whoop or Oura
• People struggling with sleep quality who want data-driven solutions
• Biohackers interested in optimizing their daily routines

Unique selling points:

1. Completely free alternative to premium sleep trackers
2. Based on published scientific research (with formulas visible)
3. Integrates multiple sleep factors (caffeine, meals, exercise)
4. Provides actionable recommendations with timing precision