Choosing the right size bed sheet is essential for a comfortable and tidy bed. A sheet that's too small will slip off during the night, and one that's too big can look messy and uncomfortable. To help you pick the perfect fit, we’ve created this simple guide based on your mattress size — with measurements in both centimeters (cm) and inches (in).

1. Measure Your Mattress

Before buying new sheets, measure your mattress carefully. You need to know three dimensions:

  • Length (head to foot)

  • Width (side to side)

  • Depth/Height (from the base to the top)

Use a measuring tape and note down the numbers in centimeters and inches if needed. Remember, thicker mattresses (especially pillow-top or memory foam ones) might need deeper fitted sheets.


2. Common Mattress Sizes and Sheet Sizes

Here’s a quick reference chart for standard mattress sizes and the matching sheet sizes:

Mattress Size Dimensions (cm) Dimensions (inches) Sheet Size to Choose
Single 90 x 190 cm 35" x 75" Single Sheet
Twin XL 90 x 200 cm 35" x 79" Twin XL Sheet
Full / Double 140 x 200 cm 55" x 79" Full/Double Sheet
Queen 160 x 200 cm 63" x 79" Queen Sheet
King 180 x 200 cm 71" x 79" King Sheet
Super King 200 x 200 cm 79" x 79" Super King Sheet

 

Tip: Always check your mattress depth. Standard sheets usually fit up to 30 cm (12") deep mattresses. For thicker mattresses, look for deep pocket sheets.

António Carvalho