Hotel Sheet Sizes: How to Measure Flat Sheets, Fitted Sheets and Pillowcases

1. Flat sheets: the mattress plus the tuck on both sides

A flat sheet has to cover the mattress and tuck underneath it on all four sides.

• Sheet width = mattress width + (2 × mattress height) + (2 × 25 cm of tuck).
• Sheet length = mattress length + (2 × mattress height) + (2 × 25 cm of tuck).
• The tuck allowance our calculator starts from is 25 cm per side.

Example: a 160×200 cm mattress that is 25 cm high needs a 260×300 cm flat sheet.

2. Fitted sheets: read the mattress itself

• A fitted sheet is sized as width × length × height of the mattress, for example 160×200×25 cm.
• Measure the height including any topper or mattress protector that stays on the bed.
• If the height is missing, the calculator marks the line as needing confirmation instead of guessing a size.

3. Pillowcases: the pillow plus 4 cm

• A pillowcase is 4 cm larger than the pillow in both dimensions.
• A 50×70 cm pillow takes a 54×74 cm pillowcase.
• The same allowance is used for every pillow size, so hotels with mixed pillow sizes are not a problem.

4. Mattress sizes the calculator already knows

These sizes are available as quick presets:

• 90×200
• 100×200
• 120×200
• 140×200
• 160×200
• 180×200
• 200×200

Any other size can be typed in by hand, including custom sizes for joined beds.

5. Before you order

• Measure one mattress of each type, including the topper.
• Write down width, length and height in centimetres.
• Compare the flat sheet size the calculator shows against the stock you have now.
• Send the sheet sizes with your quote request so we can confirm them.