To find the best king-size mattresses, we tested over a 100 beds. But there are more top-notch picks to consider, from memory foam and organic options to hybrids that offer softness and support.

The best split king mattresses offer support and allow each side of the bed to have a different comfort level. Here are our ...

A niche product popular with pro athletes and the super-tall, mega mattresses are now finding a wider audience.