Sleep is essential for physical and mental health, but for quite a few of us, clocking those high-quality zzz’s is easier said than done. If you’re someone who often wakes up in a cuddle puddle of little kids who have crawled in throughout the night, or you share the bed with a tossing and turning partner, or you’re just really freaking tall and need some space to sprawl out, you might not be getting optimum snooze time because you’re cramped. Enter: the best king size mattresses, which offer more space than any other standard option.

For those with space in their bedrooms to accommodate a king, sleeping on one can feel, well, regal. While these beds this size do cost more than smaller models (as a general guideline, the bigger the bed, the more it’ll cost), we’ve found that you don’t need access to the royal vault to afford one. To help you find the best king mattress for your sleeping preferences, we tested our way through options from top brands—including more affordable and convenient mattresses-in-a-box picks and higher-end luxury models that we believe are worth the splurge.

After evaluating each with rigorous testing (involving heat guns, pressure maps, and seismometers— more on all of this below ) and getting intel from medical experts, we narrowed down the list to the nine best king size mattresses you can get online today. Top picks for the best king size mattresses Best Overall: DreamCloud Premier Hybrid Best King Size Mattress for Side Sleepers :.