Mattress For A King Size Bed

King Size Mattresses Providing the most room of any bed, couples find they have more space to accommodate their different sleep positions (and their pet!). Measuring 76" wide and 80" long, a king size mattress provides plenty of space for a couple to sleep comfortably. Not every bedroom can fit a king mattress, so be sure to measure that the king mattress size is not too big for your sleeping.

After testing 200 beds, we landed on the best king. 1-48 of over 10,000 results for "king size bed mattresses" Results Check each product page for other buying options. Price and other details may vary based on product size and color.

Our experts found the best king size mattress for everyone from couples and side sleepers to back pain sufferers from both affordable and luxury mattress brands. Your new king size mattress will measure the dimensions of 76 inches wide by 80 inches long. Enjoy a great night's sleep on a new king size mattress!

Shopping for a King bed? Explore our picks for the best king size mattresses. Find memory foam, hybrid, and innerspring king mattresses at Mattress Warehouse from providers like Beautyrest, Purple, Casper, Sealy, and Tempur. Discover the best king size mattresses of 2025, from luxury hybrids to cooling memory foam.

See top. Space: King beds, at 76" x 80", are the largest standard bed available. While this is wonderful for sprawling out or sharing your bed, it can take up a lot of real estate in your bedroom.

Before you invest in a new king-size mattress, make sure that your room can accommodate it. King Mattress,Babo Care 12 Inch Cooling-Gel Memory Foam and Individually Pocket Innerspring Hybrid Mattress, King Bed Mattress in a Box, CertiPUR-US Certified, Medium King Size Mattress.