Unverified85% confidenceDecision RuleTime unknown
内胆尺寸应比睡袋内腔小一圈但比身高长20-30cm，过大则内部冷空气循环反而降低保暖，选购信封式睡袋应配矩形内胆，木乃伊睡袋须配收脚型内胆
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85%
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Long-term
Relevance
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Unverified睡袋长度应比孩子身高长15-25cm，预留生长空间同时避免脚部空隙过大散热，超过25cm则底部冷空气积聚反而不保暖88% similarUnverified选睡袋长度应留8-12cm生长余量而非贴身，但过长会使脚部产生冷空腔降低保暖；带脚部束口或可调底部设计的款式能兼顾两者87% similarUnverified内胆尺寸要匹配睡袋内腔，标准信封款约220x90cm，木乃伊款需选带头罩收口的对应版型，过大会形成冷空气层反而降低保暖85% similarUnverified内胆尺寸应比自身身高多出15-20cm、比睡袋内围小5-10cm，过大内胆会在睡袋内产生空隙反而降低保暖；身高185cm以上需选购加长XL款85% similarUnverified身高偏高者不建议买标准款睡袋，睡袋内长应比身高多10-20cm，脚部空间不足会压缩脚部羽绒导致失温；反之空间过大则需额外体温加热多余空气，选购需看『适用身高』标注84% similar
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