Serta - Classic Exclusive 13" Firm Tight Top
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Based on 1 year's data from Mar 14, 2026 How it works
Generally, yes. Costco will save you money but will always offer lower quality in terms of manufacturing and longevity. A mattress is one of the most important purchases you can make for the improvement of your every day life - if you can afford it, don’t cheap out on it. The difference in support you get between 800 vs 1200 coils is substantial. There are usually other differences in both warranty, return policies and distributing that can account for the price difference, but coil would be the main factor and for good reason. Go with Sleep Country for this one, their Sertas are specifically made for the company and has exclusivities no other retailer will have.
I just bought a serta queen and it is short by 4 inches all around. The sheets do not fit. What a joke.
My wife and I upgraded our Jayco stock mattress to a Serta queen. It came rolled up and vacuum sealed so it was super easy to get into the RV bedroom. Cut open the plastic, let it expand and breathe for a few days and we were good to go. I sleep as well on that one as I do at home. Love it.
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