Unverified88% confidenceDecision RuleTime unknown

睡眠隔音选NRR≥32dB的慢回弹泡棉耳塞，配合侧睡需选圆锥形而非蘑菇形，减少耳道压迫感

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Unverified睡眠/侧睡使用选NRR 28-33的慢回弹PU海绵塞，且优选圆柱形短杆或无杆款，避免压迫耳道引起侧躺疼痛87% similar Unverified睡眠场景不建议用工业级高NRR降噪耳罩：头梁压力大侧睡会压耳，且NRR30+对低频白噪音/鼾声效果一般，睡眠更适合软质头带式或睡眠专用耳塞85% similar Unverified睡眠/侧睡场景应选低膨胀慢回弹PU海绵塞且外径≤11mm，NRR 28-33dB足够；子弹头形状比圆柱形更贴合耳道减少压枕头时的顶耳感85% similar

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