Free Sleep Tools
Professional, research-based tools to monitor and improve your sleep — completely free
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Insomnia Severity Index (ISI)
7 questions to assess how severe your insomnia really is
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Sleep Efficiency Calculator
Calculate your sleep efficiency — CBT-I target is 85% or above
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Bedtime Calculator
Find the best time to sleep based on 90-minute sleep cycles
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Sleep Diary
Track your sleep daily — charts, averages and weekly trends
⚠️ These tools are for self-monitoring only and do not constitute medical advice. Always consult your healthcare provider.