What is the true king size mattress dimensions 


With all the different names of kings out there what are the true king size mattress dimensions? A standard king size mattress is 76 inches wide by 80 inches long (76” x80” ). This makes a king a great choice for people that really enjoy their own personal sleeping space. Also is a good size for young families when they have a nighttime visitor who has had a bad dream. A king size ends up giving you the same sleeping space as sleeping in a twin on your own and is 16” wider than a queen.


There is also a mattress called the California king and sometimes it is called the western king. The California king size mattress dimensions are 72” wide by 84” long (72” x84” ). This gives you 4 more inches in length than a standard king which is great for people that are tall but it is 4 inches narrower. An Eastern king is 78 inches wide by 80 long giving you 2 more inches in width.


King size mattress dimensions do give you more sleeping room but you will have to determine if the extra cost is worth it to you. Take into consideration that bedding for this size is more expensive but if that is the way you’ ll sleep better then it would be worth it. Another consideration on which size mattress is best is to take into consideration the size of the room. The box spring usually comes in two pieces and the mattress is one piece. The mattress can be awkward to move so you need to ensure that there is access to the room it will be in.



        Mattress Size                                                      Fitted Sheet                                        FlatSheet     

                                                                                Top surface measurement



Standard King  76” x80”                             76” x80”                                                     108” x102”         Pillowcase 20” x36” +


California King 72” x84”

(aka Western King)                                            72” x84”                                                     102” x110”       Pillowcase 20” x36” +


Eastern King  78” x80”                                   78” x80”                                                     108” x102”         Pillowcase 20” x36” +



king size sheets - Great sheets from Amazon


california king size sheets


California king bed in a bag


eastern king bed sheets


Information on other mattress sizes


Queen size mattress dimensions


Twin mattress size

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