Sleep Diaries: Simple Tools for Validating Wearable Sleep Trackers
A sleep diary is a simple self-report tool where individuals log their bedtime, wake time, and perceived sleep quality on a nightly basis to track sleep patterns subjectively.
- Individuals log bedtime, wake time, and sleep quality nightly for subjective tracking.
- Serve as benchmarks to compare wearable data against PSG, the gold standard.
| Claim | Scientific Observation | Source | ||
|---|---|---|---|---|
| Sleep diaries overestimate total sleep time | Subjective reports inflate duration compared to objective measures | Roomkham et al. (2022) | ||
| Moderate correlation with PSG for sleep duration | Provides subjective complement to wearables | Roomkham et al. (2022) | ||
| Combining diaries and wearables improves accuracy | Enhances health tracking for long-term use | Roomkham et al. (2022) |