But it's still one of the most expensive mattresses in the world ... "lavishly soft" and "opulent", and the company says it takes 10 craftsmen three days to handcraft a single Palais Royale.

Because there are a few different mattress collections available and each collection features several different mattresses, ...

Aly Lopez is a writer on the sleep team at CNET. She tests, researches and reviews everything sleep-related, from mattresses and bedding to sleep trends and hacks to sleep technology and supplements.

One of the most expensive mattresses on the market is made from natural latex. It's hypoallergenic, biodegradable, and more durable than memory foam. You can buy a memory-foam mattress for a few ...

I've tested all nine mattresses in Casper's current line-up, and despite my glowing Casper Nova Hybrid Mattress review, I can't recommend the brand's most expensive mattress: the Casper Wave Hybrid.