Unverified83% confidenceDecision RuleTime unknown
购买时床单尺寸需比床垫大出'包边+塞边'余量：床垫厚度25cm以上应选深口袋（deep pocket）床笠，标准床笠深度约30cm，厚床垫或加乳胶垫易脱角
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Unverified四角松紧带固定款适合厚度20-30cm床垫，深口袋(deep pocket)款可包裹35-45cm厚床垫，购买前需测量床垫厚度避免固定不牢92% similarUnverified床笠款需匹配床垫厚度（含加高垫）：普通床垫选25cm深度，厚垫/乳胶叠加需选30-35cm加深款并带全环松紧带，否则包不住或滑动；平铺床单则需比床垫大出30-40cm以便压边91% similarUnverified松紧带包边款要匹配床垫厚度：床垫≤25cm选常规款，乳胶/记忆棉厚床垫（28-35cm）需选加深款（裙边≥35cm），否则四角包不住易滑脱91% similarUnverified尺寸选择需匹配床垫实际厚度而非仅长宽，标准床笠深袋约25-30cm，乳胶或记忆棉厚垫需选35cm以上深袋否则包不住易滑脱91% similarUnverified床笠深度（侧边高度）需比床垫实际厚度多3-5cm才能包裹牢固，普通床垫选20-25cm床笠，加乳胶垫/床褥后需选30cm以上加深款90% similar
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