I don't want foam. I'm not sure if it's the competition or what, but I wanted to replace a mattress from Ikea that had gradually self-destructed (springs sagged

I don't want foam. I'm not sure if it's the competition or what, but I wanted to replace a mattress from Ikea that had gradually self-destructed (springs sagged and broke) and found that a regular furniture store was selling regular mattresses under a brand name (Serta or Sealey or something that's been around forever) for like $300 (maybe less, I don't remember exactly). I did not want to spend $600, or $1000, or $2000, and I expected buying a mattress to be like buying from a used car dealership and was surprised it wasn't. I feel like things were different in the early 2010's. And because it wasn't mail order, I was able to take it home the same day.