You can get a decent quality one from amazon for not that much $320 for bed and platform. I have this in the king size but so worth it... I like my mattress a little more firm but still flexible, this one works wonders for my back. www.amazon.com/dp/B005A4OP0C/ref=twister_B015TZFYLA?_encoding=UTF8&psc=1
Quality to me is something you can flip every month to have more even settling on the bed. They don’t even have those out in stores anymore so you’re taking a chance looking for one online…they were a good quality. That’s why they stopped selling them in stores. I had a sales guy tell me straight up they wouldn’t sell “as many” so they stopped selling them.
Long lasting…that’s the hard to find part. My mom said she’s had this bed listed below for 8 years now and she loves it…it’s cheap so if it doesn’t work out you haven’t wasted much🤷🏻♀️