No. It’s all bullshit. I bought a traditional Japanese futon. My back has never felt better, posture improved. Its just technically ‘harder’. Western mattresses sink and sag and fuck your back and neck up, and then you have buy a new one. They’re environmentally bad, bad for your wallet, bad for your back, and they take up loads of space. Futons can be folded away easily in a cupboard. Hammocks are another potential solution.
Maybe there are good renters protections. Maybe property is so plentiful that rent is less than a loaf of bread and no one is homeless. It’s a light hearted fantasy comic. Your hatred for landlords doesn’t need to be applied to all things.