Sleep scores from different devices use different scales, different inputs, and different weighting — which means a "75" on Oura means something different from a "75" on Fitbit. Here are the benchmarks for every major device, plus what the numbers actually represent.
Oura Ring Sleep Score
Scale: 0–100 Scoring breakdown:
- Total sleep: up to 24 points
- Efficiency: up to 20 points
- Restfulness: up to 20 points
- REM sleep: up to 10 points
- Deep sleep: up to 10 points
- Sleep latency: up to 10 points
- Sleep timing: up to 6 points
Benchmarks:
- 85–100: Optimal. You're consistently getting enough high-quality sleep.
- 70–84: Good. Minor improvements available — usually in one or two categories.
- 60–69: Fair. Something is meaningfully suppressing one or more components.
- Below 60: Poor. Duration, efficiency, or architecture is significantly disrupted.
Most healthy adults average 70–85. Consistently above 85 requires good sleep duration, strong HRV, and solid stage distribution.
Fitbit Sleep Score
Scale: 0–100 What it weights: Duration (~40%), sleep quality/stages (~40%), restoration/RHR (~20%)
Benchmarks:
- 90+: Excellent
- 80–89: Good
- 60–79: Fair
- Below 60: Poor
Most Fitbit users score between 72 and 83. Fitbit compares your stages to benchmark ranges for your age and sex — being below the benchmark for deep or REM sleep pulls this category down. Note: Fitbit's stage accuracy is lower than Oura or WHOOP, so use trends rather than absolute numbers.
Garmin Sleep Score
Scale: 0–100 What it measures: Duration, sleep stages, overnight stress (HRV-based), restfulness, resting heart rate, respiration
Benchmarks:
- 90–100: Excellent
- 80–89: Good
- 60–79: Fair
- Below 60: Poor
Garmin's score is particularly sensitive to alcohol and high psychological stress because it weights HRV-based overnight stress heavily. Users who drink regularly often see Garmin scores 15–25 points lower on those nights compared to alcohol-free nights.
WHOOP Sleep Performance Score
Scale: 0–100% (percentage of sleep need achieved) Different from others: WHOOP calculates a personalized sleep need based on your recent strain and recovery, then measures whether you met it.
Benchmarks:
- 100%: You met your sleep need.
- 85%+: Generally considered "green" recovery.
- 70–84%: Yellow — adequate but below need.
- Below 70%: Red — sleep debt is accumulating.
WHOOP is less comparable to other devices because it's measuring adequacy relative to your personal baseline, not an absolute score. A 75% on WHOOP is different from a 75 on Oura.
Apple Watch (via Third-Party Apps)
Apple Watch doesn't provide a native sleep score. Third-party apps synthesize the Health app data:
- AutoSleep: Scores quality and sleep on separate scales; "Quality" above 70% is good
- SleepWatch: Average score for good sleepers is typically in the 80s
- Pillow: Uses stars/ratings rather than a numeric scale
What Score Should You Aim For?
Rather than chasing a specific number, track your trend:
- If you're below 70 (Oura/Fitbit/Garmin) or below 75% (WHOOP) consistently, something structural is suppressing your sleep — most likely alcohol, duration, or schedule inconsistency.
- If you're 70–80, there's meaningful improvement available. Test eliminating alcohol for two weeks to see your ceiling.
- If you're already 80+, focus on consistency rather than optimization.
A single good sleep score doesn't matter much. Consistently staying above your baseline does.
Why Your Score Varies Night to Night
Normal nightly variation is 8–12 points in most devices. Some natural variation is expected even with perfect habits. Factors that commonly cause drops: alcohol, illness, travel across time zones, high psychological stress, vigorous late exercise, hot room, or just natural biological variation in HRV.
SleepBetter.ai helps you see the pattern across nights rather than overreacting to daily swings. Log your habits, track the trend, and you'll quickly identify your highest-leverage changes.