床垫层状结构及硬度对睡眠质量影响的研究

he structural properties of mattress bedding layer and the mattress firmness directly affect support properties of the mattress on human body, and further influence sleep initiation and maintenance. This study combined subjective evaluation and sleep registrations to investigate whether the structural properties of mattress bedding layer and mattress firmness affected sleep quality in healthy subjects. Altogether, 11 normal female sleepers participated in actual sleep experiments on 18 experimental mattresses. Subjects spent more than 4 nights on each of the 18 mattresses in the sleep laboratory. During these days, polysomngraphy was performed and subject body movements were recorded using Ingra-red video cameras. Subjective sleep data were gathered by means of self-report sleep diaries and visual analogue scales. Results showed that average amount of time per night that spent in supine posture (53.02%) were longer than that in lateral posture (45.88%). Mattress bedding layer and its properties influenced sleep quality even more than mattress firmness. Chinese people preferred to sleep in supine posture, the improvement comfort in supine position by means of ergonomic mattress design will do favor sleep.