Unverified82% confidenceCautionTime unknown
记忆棉/乳胶填充的保护垫本质是薄款床褥(topper)，厚度＜3cm几乎无支撑改善作用，想调节软硬需选5cm以上，此时已属于床褥而非保护垫
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82%
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Long-term
Relevance
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Unverified记忆棉床褥厚度≥5cm才能有效缓冲硬板床或改善旧床垫塌陷，＜3cm仅有薄薄贴合感无支撑改善作用91% similarUnverified3cm薄款护理垫仅能改善触感与轻微保护床垫，无法改变原床垫软硬度；要实质性调节软硬需≥5cm，改善硬床垫过硬需8cm记忆棉或乳胶90% similarUnverified填充厚度与保护定位冲突：追求保护床垫、方便清洗选薄款（＜1cm纤维款）；追求改善睡感、增加软度需选3-5cm记忆棉/乳胶款，但厚款会削弱原床垫的支撑特性89% similarUnverified原床垫偏硬想变软选5cm以上记忆棉或乳胶；原床垫偏软已塌陷则应选8cm高密度乳胶做支撑补偿，用软性材质补软床反而加剧塌陷88% similarUnverified5cm厚度对偏硬床垫的软度补偿有限，如果原床垫很硬且希望明显变软，5cm记忆棉垫可能不够，需考虑更厚规格88% similar
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