Measuring Your Mattress Depth for Dust Mite Covers

Our dust mite covers come in four depths: 9" deep, 12" deep, 15" deep, and 18" deep. Queen and King sizes are available in an 18" deep version. Any extra fabric can be easily and harmlessly tucked in-between your mattress and the box spring.

How to Measure Mattress Depth: How to measure your mattress for allergy relief mattress covers
  1. Remove comforter, blankets, sheets, and mattress pad
  2. Use a tape measure or ruler to measure mattress depth from seam to seam.
  3. If the mattress has a sewn in pillow top, measure in several places to get an accurate measurement.
How to Measure Mattress and Box Spring Size:
  1. Remove comforter, blankets, sheets, and mattress pad
  2. Measure the length and width of the mattress with a tape measure or yard stick.
Mattress Size Dimensions Metric Dimensions
Twin 39" x 75" 99 cm x 191 cm
Long Twin 39"x 80" 99 cm x 203 cm
Full 54" x 75" 137 cm x 191 cm
Queen 60" x 80" 152 cm x 203 cm
King 78" x 80" 198 cm x 203 cm
CA King 72" x 84" 183 cm x 214 cm


Return to Allergy Bedding or shop all Mattress Covers.


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Could not wait to try Safeguard Window Filters. I am using them, am very pleased and have high hopes that my solution to open windows is at hand!
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