A sleep hygiene and yoga intervention conducted in affordable housing communities: Pilot study results and lessons for a future trial.
Christine E Spadola, Rebecca E Rottapel, Eric S Zhou and 5 others
PMID 32379660WHAT IT FOUND
In 17 adults with short sleep, self-reported sleep duration rose from 5.4 to 6.9 hours after sleep hygiene education, phone coaching, yoga classes, and home yoga.
Stress and depression did not change. No control group means this cannot show the programme worked.
Key findings
01Self-reported sleep duration increased from 5.4 to 6.9 hours per night, and sleep disturbance, sleep-related impairment, and sleep hygiene scores improved significantly.
02Perceived stress and depressive symptoms showed no significant change.
0373.7% rated the sleep education session helpful or very helpful, and over 80% agreed the yoga component improved their sleep or left them relaxed.
STILL TO COME
How it was doneWhat they foundWhat it means for RNs
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What it does not show
There was no control group, so time, attention, regression to the mean, and placebo effects cannot be ruled out. Only 17 of 23 consented participants completed both assessments, and the sample was small. All sleep and mood outcomes were self-reported, and participants said the questionnaires were repetitive or hard to understand. The programme combined sleep hygiene education, phone coaching, yoga classes, and home yoga, so the effect of any single component cannot be separated. Participants were recruited from two Boston affordable housing communities and were mostly female, so results may not apply to other settings.
Declared interests
The study was funded by NIH under an R34 mechanism. The authors declared no conflicts of interest.
The easy way to misread this
Do not conclude that sleep hygiene and yoga caused the sleep improvements. The study had no control group, used self-reported outcomes in 17 analysed participants, and delivered sleep hygiene education, phone coaching, yoga classes, and home yoga together, so the contribution of any single component cannot be separated.