How to Size a Mattress Sheet


Mattresses come in different sizes so it's important to measure your bed and purchase sheets that fit properly. Some require deep pocket sheets, while others just require a standard fit. There are also double-sided beds that really make sheet shopping a challenge. Learning how to size a mattress sheet is easy if you know what to measure.

Things You'll Need

  • Tape measure
  • Measure the length and width of your bed. Sheets for a standard king will not fit a California king but a full (double) that is extra long will fit into queen sized sheets. It can be very confusing and that's why it's important to measure your mattress.


    King 78 inches by 80 inches
    California King 72 inches by 84 inches
    Queen 60 inches by 80 inches
    Full 54 inches by 75 inches
    Full XL 54 inches by 80 inches
    Twin 39 inches by 75 inches
    Twin XL 39 inches by 80 inches

  • Measure the depth of your mattress. Some mattresses are very thick and require deep-pocketed sheets. Luckily manufacturers are beginning to make standard sheets larger to fit today's beds. Even some of the youth character sheets will fit nicely on a pillow-top mattress. It is important to know the size of your mattress as well as its depth to find sheets that fit properly.

  • Purchase your deep-pocketed sheets in a larger size if you aren't quite sure. Some beds measure 13 inches deep, some measure 18. Also keep in mind that if you are planning on using a mattress topper you need to include the extra inches in your measurement, so don't forget to measure it as well.

  • When purchasing a brand new bed, ask your salesperson what they recommend for sheets. They will show you how to measure the bed and clarify what size sheets are needed.

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  • Photo Credit wood bedroom image by Pavel Losevsky from
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