抄録
We studied the relationship between the air permeability of the mattress and the subjective evaluation of sleep. Twenty eight healthy subjects(10 males, 18 females), aged 55-65, were investigated in summer, sleeping in their homes for 15 consecutive nights from Friday. Subjects were randomly assigned to one of two groups. Group 1 slept for 7 consecutive nights(4 adaptation nights and 3 nights for analysis) on a breathable mattress first and then for 8 consecutive nights(4 adaptation nights, 3 nights for analysis and last night for Last Night Effect) on a nonporous mattress. The other group slept in reverse order. The subjective evaluation of sleep was estimated by OSA sleep inventory MA version, a standardized rating scale to estimate sleep quality, and original questionnaires. The results showed both mattresses made a little difference in the subjective evaluation of sleep and humidity sensations. Our study indicates the air permeability of the mattress is not important factor for better sleep.