umatrasi wabantwana iSynwin ithengiswe kude eMelika, eOstreliya, eBritane, nakwezinye iindawo zehlabathi kwaye ifumene impendulo enkulu yentengiso apho. Umthamo wentengiso weemveliso uyaqhubeka ukukhula minyaka le kwaye awubonisi zimpawu zokuhla kuba uphawu lwethu luzuze intembeko enkulu yomthengi kunye nenkxaso. Ilizwi lomlomo lixhaphakile kwishishini. Siza kuqhubeka nokusebenzisa ulwazi lwethu oluninzi lobuchwephesha ukuphuhlisa iimveliso ezininzi ezihlangabezana nezingaphaya kolindelo lwabathengi.
I-Synwin kid umatrasi uSynwin ngomnye woovulindlela kwimarike ngoku. Iimveliso zethu ziye zanceda ukuphumelela ukuqondwa ngakumbi kubathengi ngokusebenza kwabo ixesha elide. Sihlala sigxininisa ukubaluleka kwempembelelo yegama-ngomlomo kwaye sigxininise kwimpendulo yomthengi, ukuze siphucule ukwenza ngcono. Kuyabonakala ukuba iyasebenza kwaye siye safumana abathengi abatsha ngakumbi nangakumbi.oyena matrasi we-innerpring ophantsi,iiseti zoomatrasi ze-innerspring,umatrasi we-king size coil spring.