Here’s how it works. At 76x80", king-size mattresses can be practical for couples who value personal space, co-sleeping parents, and those with large pets who seem to sneak under the covers.

The plush Saatva classic king-size mattress features a 3-inch standard ... The brand’s proprietary foam is infused with ...

Upgrading to a king-size mattress can be a good move for a number of reasons. Maybe you sleep with a partner and need some extra space, or maybe you just want more room to sprawl out at night.