Saatva's flagship Classic mattress has a reputation for luxury comfort and after extensive testing, I have to agree that it's the best mattress you can buy online in 2025.

But I've recently been sleeping on the Siena Signature Mattress and this low-budget bed has been impressive me with its outstanding support. Can it possibly compare to the Saatva Classic?

Okay, this isn't an entirely fair fight but if you've been trying to decide whether to splurge or save in the Black Friday mattress deals, I hope this Saatva vs Siena head-to-head will help you make the right choice.

So let's dive in: how does the best luxury mattress we've tested weigh up against the our favorite cheap mattress — and which should you buy?

Saatva Classic: twin was $1,399 now $999 at Saatva With $400 off all sizes of

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