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卧室床头用钟优先选连续扫秒（sweep movement）机芯而非跳秒石英机芯，跳秒机芯每秒'滴答'声在夜间约20-30分贝会干扰浅睡眠者

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Unverified卧室钟表必须选连续扫秒（sweep movement）机芯而非跳秒石英机芯，跳秒每秒的'滴答'声在夜间安静环境约20-30分贝，敏感者会失眠96% similar Unverified卧室挂钟必须选连续扫秒（sweep movement）机芯而非跳秒（step movement）机芯，跳秒机芯每秒有约30分贝的滴答声在夜间会明显影响睡眠，扫秒机芯基本静音96% similar Unverified卧室不建议放置普通跳秒石英钟，滴答声在夜间安静环境下可达30分贝以上，长期影响入睡，应选静音扫秒或无声电波钟89% similar Unverified卧室夜用的播放器应选支持定时关机（30/60/90分钟）且带渐弱淡出功能的机型，无淡出功能的突然静音反而会惊醒浅睡者84% similar Unverified床头助眠机的最小音量应可调至30分贝以下，若最低档仍超过40分贝会反而干扰浅睡，选购时确认音量为无级/连续调节而非3-5档固定档位81% similar

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