Sleepwell supported · human dataDiscovery of the day
A meta-analysis of ten randomised trials in healthy adults found warm-water immersion thermotherapy increased total sleep time (SMD 0.63) and sleep efficiency (SMD 0.64), but did not significantly change sleep latency or any Pittsburgh Sleep Quality Index score.
- Study design
- Meta-analysis
- Journal
- Int J Biometeorol
- Evidence
- well supported
What it shows: Meta-analysis of ten RCTs in healthy adults; both significant effects were borderline, water temperature, timing and immersion protocols differed between trials, and subjective sleep quality did not improve on any PSQI component.Meta-analysis · Int J Biometeorol
The effect of water immersion thermotherapy on sleep quality: a systematic review and meta-analysis of randomized controlled trials. Int J Biometeorol 2026Read the study →