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Nah, Sleep Number beds are basically just an "air bladder" (aka a giant vaguely mattress-shaped rectangular bag) that sit in a tomb of foam.

https://i.ytimg.com/vi/pMiTq6YkJ2c/maxresdefault.jpg

People are literally paying a couple grand for a fancy adjustable airbed with some foam on top of it.

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I get your point but is there a significantly cheaper alternative? As far as DIY goes, I don't think I'd be able to replicate a "Sleep Number" bed with my air mattress and foam.

The cheaper alternative is a regular mattress.

I was forced to buy one against my will. The new models are significantly better than they once were and it feels like a regular bed now rather then two air mattresses with some loosely arranged foam dividers. They've dumbed down the app and made the data reporting worse but it used to give decent stats on breath and heart rates.

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