Pamusoro pematiresi kuti ipe yakakodzera yakapfava uye inochinjika

Kuti arege vatengi vanoda kushandisa yakawanda vanofanira kudhura mari yakawanda pane yake yakavakirwa-mukati metiresi yechirimo, simmons yakasimudzira mabhenefiti ekurara. Kubudirira kwemaitiro ekutengesa kwemakore akawanda kwave kuri kuwedzera, nokuti zvidzidzo zvinotevera zvakasimbisa kuti kupfuma, kurara kwepamusoro chinhu chinokosha chehutano. Yakapfava metiresi nhasi munzira dzakasiyana siyana dzekuvandudza kunyaradza kwekurara. Chokutanga pane zvose, kuburikidza nemhando dzakasiyana-siyana dzakakwidziridzwa dzakavakwa-muchirimo dhizaini, metiresi yemazuva ano kune uremu hwemuviri kugovera munzvimbo yakafara; Inobatsirawo kudzivirira mametiresi ekupfeka kwakasiyana uye kubvaruka. Mukuwedzera, pamusoro pematiresi kupa yakakodzera yakapfava uye inochinjika, uye inobatsira kuchengetedza musana uri munzvimbo yechisikigo curve. Vagadziri vemazuva ano vemetiresi, zvisinei, chenjera kuti urege kunyanyisa nyoro pamusoro, zvinokanganisa vakarara musana chinzvimbo, kutungamirira kusagadzikana kana kunyange kurwadziwa. Parizvino, kudiwa kwemutengi kwematiresi kuri kuenderana. Kutengeswa muUnited States, muna 1990, anenge mamatiresi ane mamiriyoni 16. Pamwe chete nechigadziko, kutengesa kwekutengesa kwematiresi kunosvika mabhiriyoni mana emadhora. Kunze kwemakambani makuru mashoma, mazhinji evagadziri vemetiresi madiki, mabhizinesi akavakirwa munharaunda. MuUnited States inenge 825 fekitari yemamatiresi, yakawanda ichiri yavo uye inoshandiswa nemhuri yakatanga. Mazuva ano, mattress mazhinji anogadzirwa zvinoenderana nehukuru hwakajairwa. Iyo yakatangwa neindasitiri, inoshandiswa kugadzirisa kambani yekugadzira nekugadzira metiresi yemubhedha wechero mutsauko pakati pemakambani