How to Measure Your Cot or Bassinet for the Perfect Fitted Sheet

One of the biggest reasons parents struggle to find sheets that fit is that they don’t know their exact mattress size. Even small variations of just a few centimeters can make a huge difference to how well a sheet stays in place. The good news is that measuring your cot or bassinet mattress is simple, and once you have the dimensions, you can order custom size baby sheets that are guaranteed to fit.

Step 1: Measure the Length

Place a tape measure along the longest side of the mattress, running from top to bottom. Write down the measurement in centimetres.

Step 2: Measure the Width

Next, measure across the shorter side of the mattress. Again, record the measurement carefully.

Step 3: Note Any Unique Shapes

If your cot or bassinet has curved edges, like Stokke or Leander designs, you’ll need to record both the longest and widest points. Custom sheet makers can then create a fitted design that mirrors the shape of your mattress.

Why Accuracy Matters

If you underestimate the depth, your sheet will pop off the corners. If you overestimate, the sheet may sag. Precision ensures a snug, safe fit.

Common Mistakes to Avoid

• Guessing measurements instead of using a tape measure

• Relying on “standard” dimensions listed online

• Forgetting to include mattress depth

FAQs Parents Ask About Measuring

Do I need to measure if I know my cot brand? Yes, because some brands release multiple models with slightly different sizes. What if my mattress is irregularly shaped? A custom maker can still create a fitted sheet if you provide the longest and widest dimensions.

Final Thoughts

Measuring your mattress only takes a few minutes, but it makes all the difference in finding sheets that fit correctly. By providing accurate measurements, you can order custom size sheets that keep your baby comfortable, safe, and secure throughout the night.