Best Price Mattress 10 Inch Memory Foam Mattress, Calming Green Tea Infusion, Pressure Relieving, Bed-in-a-Box, CertiPUR-US Certified, Queen https://www.amazon.com/dp/B00GTCL3SQ/ref=cm_sw_r_apan_glt_i_5BWRTMQ4CJJ83XGNE18T?psc=1
I bought this one this year and my wife and I have absolutely loved it. Delivered right to your door, super comfortable at a great price. I'm not sure your price range but I can't complain about a queen size mattress for under 300
Super cheap and it's by far my favorite mattress so far. Even my boyfriend loves it. No clue why it's so amazing but it is .
Best Price Mattress 10 Inch Memory Foam Mattress, Calming Green Tea Infusion, Pressure Relieving, Bed-in-a-Box, CertiPUR-US Certified, Queen https://www.amazon.com/dp/B00GTCL3SQ/ref=cm_sw_r_apan_glt_fabc_XRT3ZEF2TG5JEXW9GQ57?_encoding=UTF8&psc=1
I went with a cheap Amazon memory foam one:
https://www.amazon.com/gp/product/B00GTCL3SQ/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1
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The reality of the industry is that everyone is selling mattresses that cost like $50 to make. It's just that some of them mark them up to $300 and some of them mark them up to $1200+.
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I have had this mattress for several years now and really love it. Bought one this summer for my son when he outgrew the twin size one we bought him two years ago. He's super happy with it too.
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It it BIFL? I don't know. But I know that it has lasted a number of years so far and I'm still very happy with it. I think Most mattresses get saggy and worn in 8-10 years anyway, so I'm not sure if there IS a BIFL mattress. Our last one was way overdue to be replaced at like 17 years when we got this memory foam one.