%0 Journal Article
%T The effects of fabric for sleepwear and bedding on sleep at ambient temperatures of 17ˇăC and 22ˇăC
%A Angus H Ireland
%A Chin Moi Chow
%A Mark Halaki
%A Mirim Shin
%A Paul Swan
%J Archive of "Nature and Science of Sleep".
%D 2016
%R 10.2147/NSS.S100271
%X The fibers used in clothing and bedding have different thermal properties. This study aimed to investigate the influences of textile fabrics on sleep under different ambient temperature (Ta) conditions. Seventeen healthy young participants (ten males) underwent nine nights of polysomnography testing including an adaptation night. Participants were randomized to each of the three binary factors: sleepwear (cotton vs wool), bedding (polyester vs wool), and Ta (17ˇăC vs 22ˇăC with relative humidity set at 60%). Skin temperature (Tsk) and core temperature (Tc) were monitored throughout the sleep period. Sleep onset latency (SOL) was significantly shortened when sleeping in wool with trends of increased total sleep time and sleep efficiency compared to cotton sleepwear. At 17ˇăC, the proportion of sleep stages 1 (%N1) and 3 (%N3) and rapid eye movement sleep was higher, but %N2 was lower than at 22ˇăC. Interaction effects (sleepwear ˇÁ Ta) showed a significantly shorter SOL for wool than cotton at 17ˇăC but lower %N3 for wool than cotton at 22ˇăC. A significantly lower %N2 but higher %N3 was observed for wool at 17ˇăC than at 22ˇăC. There was no bedding effect on sleep. Several temperature variables predicted the sleep findings in a stepwise multiple regression analysis and explained 67.8% of the variance in SOL and to a lesser degree the %N2 and %N3. These findings suggest that sleepwear played a contributory role to sleep outcomes and participants slept better at 17ˇăC than at 22ˇăC
%K cotton
%K polyester
%K wool
%K polysomnography
%K skin temperature
%K core body temperature
%U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4853167/