Several studies, wherein the structure or rigidity of a mattress was varied, have been conducted to improve sleep quality. These studies investigated the effect of variation in the surface characteristics of mattresses on sleep quality. The present study developed a mattress whose rigidity can be varied by controlling the amount of air in its air cells. To investigate the effect of the variable rigidity of the air mattress on sleep quality, participants (Male, Age: 23.9 ± 2.74, BMI: 23.3 ± 1.60) were instructed to sleep on the air mattress under different conditions, and their sleep quality was subjectively and objectively investigated. Subjectively, sleep quality is assessed based on the participants’ evaluations of the depth and length of their sleep. Objectively, sleep is estimated using the sleep stage information obtained by analysing the movements and brain waves of the participants during their sleep. A subjective assessment of the sleep quality demonstrates that the participants’ sleep was worse with the adjustment of the air mattress than that without; however, the objective sleep quality results demonstrates an improvement in the sleep quality when the rigidity of the air mattress is varied based on the participant’s preference. This paper proposes a design for mattresses that can result in more efficient sleep than that provided by traditional mattresses.

中文翻译：

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刚度可变的充气式气垫对睡眠质量的影响。

为了改善睡眠质量，已经进行了几项研究，其中改变了床垫的结构或刚度。这些研究调查了床垫表面特性变化对睡眠质量的影响。本研究开发了一种床垫，其硬度可以通过控制其气室中的空气量来改变。为了研究气垫可变刚度对睡眠质量的影响，指示参与者（男性，年龄：23​​.9±2.74，BMI：23.3±1.60）在不同条件下在气垫上睡眠，并且他们的睡眠质量是主观的并进行客观调查。主观上，根据参与者对睡眠深度和长度的评估来评估睡眠质量。客观地 使用通过分析参与者在睡眠期间的运动和脑电波获得的睡眠阶段信息来估计睡眠。对睡眠质量的主观评估表明，在没有设置空气床垫的情况下，参与者的睡眠较差。但是，客观的睡眠质量结果表明，当充气床垫的刚度根据参与者的偏好而变化时，睡眠质量会得到改善。本文提出了一种床垫设计，该床垫可以比传统床垫提供更高的睡眠效率。客观的睡眠质量结果表明，当根据参与者的偏好改变气垫的刚度时，可以改善睡眠质量。本文提出了一种床垫设计，该床垫可以比传统床垫提供更高的睡眠效率。客观的睡眠质量结果表明，根据参与者的喜好改变气垫的刚度时，可以改善睡眠质量。本文提出了一种床垫设计，该床垫可以比传统床垫提供更高的睡眠效率。