Also known as: sleep regularity, consistent bedtime, regular sleep schedule, Sleep Regularity Index, social jetlag, social jet lag, sleep timing regularity
Strongest in Recency (98). Held back by Study quality (72).
Solid mix of RCTs with some methodological gaps.
Confirmed across many independent studies with significant findings.
Tens of thousands of participants pooled across studies.
Studies agree on direction of effect.
Most studies are recent (last 2-3 years).
Areas where research points to a consistent direction of effect. The strength of evidence is graded; the size of the effect is not quantified.
Going to bed and waking up at the same time every day, including weekends. Sleep regularity is a stronger predictor of mortality and mood than total sleep time alone.
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Within the iCBT intervention group, pain scores did not significantly differ between post-intervention and follow-up assessments (SMD=-0.27, 95% CI -0.73 to 0.19).
rTMS did not produce a statistically significant improvement in sleep quality compared with sham (SMD = -1.02, p = 0.26).
Pilates showed a non-significant small-to-medium effect toward improving sleep quality in patients with breast cancer (Hedges's g = 0.335).
Evidence on long-term effects (>6 weeks) of exercise training on CRF and other outcomes in SCI is lacking; only one study examined long-term effects, and effects on perceived exertion, independence, physical activity, fatigue and sleep quality are very unclear.
Fully automated digital cognitive behavioral therapy for insomnia (dCBT-I) produced substantial reductions in insomnia severity in adults (SMD = -0.82).