买extra firm，11-14寸厚的床垫，Sealy， Beautyrest 和Serta三个牌子，哪个牌子，哪个系列好些？

我看了一下，下面三个应该是同一档次的，review最好的应该是Macy‘s Serta Perfect Sleep，好像质量比较稳定，现在有adjustable base送。

mattress firm 昨晚有nightowl 的promotion，可以多减 $100:

https://www.mattressfirm.com/beautyrest/silver-brs900-c-13.75-inch-extra-firm-mattress/mfiV000247413.html?cgid=5637146827#start=1

https://www.homedepot.com/p/Sealy-Posturepedic-Plus-II-12-in-Tight-Top-Ultra-Firm-Memory-Foam-Queen-Mattress-52768051/315028735

https://www.macys.com/shop/product/serta-perfect-sleeper-renewed-night-13-extra-firm-mattress-queen?ID=11997556&tdp=cm_app~zMCOM-NAVAPP~xcm_zone~zPDP_ZONE_A~xcm_choiceId~zcidM05MOB-731aea4e-5095-4251-9d71-b6dd51f07a7b%40H7%40customers%2Balso%2Bshopped%2425931%2411997556~xcm_pos~zPos1~xcm_srcCatID~z25931

感兴趣楼上推荐的床垫。macys有办法可以拿到打折的code吗？谢谢