Unverified85% confidenceDecision RuleTime unknown
记忆棉密度在50-60kg/m³时支撑与回弹平衡最佳；低于40kg/m³支撑不足易塌陷，高于70kg/m³偏硬且低温易变僵硬
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Unverified支撑核心应选高密度硬泡棉（密度≥45kg/m³）作为承托层，记忆棉仅适合做贴合表层；纯记忆棉腰托受压后会持续下陷，无法提供稳定支撑82% similarUnverified棉麻桌布克重120-180g/m²垂感与厚度平衡最佳，低于100g/m²偏薄易皱透光，高于200g/m²偏硬难打理褶皱80% similarUnverified垫体总厚度15-20mm且中层为高密度EVA（密度≥45kg/m³）时才能提供关节缓冲又不塌陷；过软（<25kg/m³）的记忆棉垫反而使弱肢难以发力站起79% similarUnverified选购时注意记忆棉层厚度，低于3cm的记忆棉层体感偏硬接近纯弹簧，超过5cm则可能过软导致翻身费力79% similarUnverified无纺布克重是耐用度关键：≥90g/m²才耐反复取放，低于60g/m²的薄款用一两次就易勾破、提手撕裂78% similar
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