The Impact of Weighted Blanket Use on Adults with Sensory Sensitivity and Insomnia.
Rhonda Davis-Cheshire, Savannah Bennington, Allison Hartsek and 3 others
PMID 38152339WHAT IT FOUND
Four adults with sensory sensitivity and insomnia reported lower insomnia scores after using a weighted blanket.
Daily sleep diaries showed mixed results for duration and quality, with no clear pattern across participants. This small study cannot confirm if the blanket caused the changes.
Key findings
01All four participants experienced a decrease in insomnia severity on the Insomnia Severity Index (ISI) after the intervention period.
02Individual daily sleep diary data showed mixed results for sleep quality and quantity, with visual analysis not consistently supporting the intervention's effectiveness.
03The study used a weighted blanket weighing between 6% and 9.6% of each participant's body weight.
STILL TO COME
How it was doneWhat they foundWhat it means for OTs
Read the rest of this summary
You get three full summaries a month, free, and we do not ask for a card. Search, the TL;DRs and your library stay unlimited either way.
What it does not show
The study included only four participants, all female, aged 21 to 46, recruited from a convenience sample via social media, which limits generalizability. Results relied on self-reported sleep diaries, which can be inaccurate. There was significant variability in baseline sleep patterns among participants. Two of the outcome measures (Tuck and Snooze Survey, Additional Sleep Diary Questions) were created by the researchers and have no established psychometric properties. The study did not include a control group or blinding, so placebo effects or natural variation in sleep could explain the changes. Individual data analysis (visual trends and Tau-U) did not consistently support the effectiveness of the blanket, despite the group-level ISI improvement.
Declared interests
The authors declare no conflicts of interest. The study was approved by the Kettering Health Institutional Review Board. No external funding sources are mentioned in the provided text.
The easy way to misread this
Do not assume the weighted blanket caused the improvement in insomnia scores. The study had no control group, and daily sleep diaries showed inconsistent changes in sleep duration and quality. The improvement might be due to natural sleep variation, the placebo effect, or other factors not measured.