问答题
Therearelotsofreasonsforbuyinganewmattress（床垫）：gettingmarried，movingtoanewhomeorsimplythedesireformoresleepingspace.Nomatterwhatthereason，theultimateexpectationisagood，restfulnight’ssleep.
Butwithallthedifferentconstructions，firmness，sizesandpricesforsleepsets，howdoyoudecidewhichoneisrightforyou？Themakerssuggestyoutreatbeddingasalong-terminvestment.Thismeanscarefullyconsideringthequalityandcomfortyouaregettingforyourmoney.
Ifyou’vedecidedtobuyanewmattress，investintheverybestyoucanafford.Pricesaredeterminedbythematerialused，thequalityofconstructionandthesizeoftheset.It’saninvestmentinone-thirdofeverydayofyourlifeandthatcanhaveadramaticeffectonhowyoufeeltheothertwo-thirds.
【参考答案】
购买新床垫的原因很多：结婚、搬家或仅仅是因为想要更多的睡眠空间。不管何种原因，最终的期望是要一晚上睡个安静的好觉。 ......
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