Unverified75% confidenceTradeoffTime unknown
监测精度与床垫软硬存在权衡：过软的记忆棉/乳胶厚层会衰减体动信号，导致薄膜传感器BCG信号变弱、心率检出率下降，追求监测精度建议中等偏硬支撑或将传感层置于顶部
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Unverified监测精度越高（BCG高采样率）越依赖床垫硬度均匀，软床垫/记忆棉会衰减信号，Z字形独立弹簧或过软床垫上传感器信噪比下降，需选支持自校准的产品90% similarUnverified监测精准度与舒适度存在矛盾：传感器层越靠近表面数据越准，但会降低填充蓬松度；优质产品将传感器置于中层（表层填充≥5cm记忆棉）平衡两者75% similarUnverified监测精度越依赖高密度传感器阵列，床套越厚越影响舒适度；日常趋势性监测选薄型非接触方案更省心，医疗级精度需求才值得接受厚型接触式的异物感74% similarUnverified监测精度与舒适度存在权衡：夹得越紧信号越准但越容易压出红印、影响血流并增加误报；反之松脱会频繁误报，需选带柔性硅胶传感器+多尺寸适配的产品平衡二者73% similarUnverified监测精度与清洁便利性存在矛盾：接触式传感器需紧贴头颈才能精确采集，往往导致电子模块深埋枕芯难以清洗；非接触式（枕下床垫式）传感器清洁方便但精度略降70% similar
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