Caravan mattresses rarely follow standard UK bed sizes. Whether you have a fixed island bed, a corner layout or a convertible dinette bed, getting the measurements right is essential if you want fitted sheets and mattress protectors that stay secure and comfortable.

In this guide, we’ll show you exactly how to measure your caravan mattress properly — so you can order the correct caravan bedding with confidence.

Why Measuring Properly Matters

Unlike standard single, double or king size beds, caravan mattresses are often:

  • Shorter than domestic beds
  • Narrower at the foot
  • Curved at one or both corners
  • Custom-shaped for the layout

Ordering the wrong size can result in loose sheets, tight corners, or protectors that don’t fully cover the mattress. A proper fit makes a huge difference to comfort — especially when you’re trying to relax on holiday.

What You’ll Need

  • A metal tape measure
  • Pen and paper (or phone notes)
  • Access to all sides of the mattress if possible

For the most accurate results, remove existing bedding before measuring.

Step 1: Measure the Length

Measure from the head of the mattress to the foot in a straight line. Record the measurement in centimetres.

Tip: If your mattress is curved at the foot, measure the longest point.

Step 2: Measure the Width

Measure across the widest part of the mattress from side to side.

If your mattress tapers (common in island or French beds), measure both:

  • The widest point
  • The narrowest point

This ensures your fitted sheet accommodates the full shape.

Step 3: Measure the Depth (Very Important)

Depth is often overlooked — and it’s the main reason sheets don’t fit properly.

Measure from the base of the mattress to the very top surface.

If you use:

  • A mattress topper
  • An underlay
  • A quilted protector

Measure the total depth including everything that stays on the bed.

How to Measure Corner or Cut-Off Mattresses

For corner beds or mattresses with cut-off edges:

  • Measure the full rectangle first (maximum length and width)
  • Then measure the cut-off section separately
  • Note which corner is shaped (left or right when standing at the foot of the bed)

This information ensures a properly cut fitted sheet or protector.

Common Caravan Mattress Size Ranges (Guide Only)

  • Caravan Single: approx. 75–80cm x 180–190cm
  • Three Quarter: approx. 120cm x 185cm
  • Island Bed: approx. 135–150cm wide x 185cm long (often tapered)

Always measure your own mattress rather than relying on model specifications.

Before You Order Your Caravan Bedding

Double-check:

  • Length
  • Width (widest and narrowest if applicable)
  • Depth including toppers
  • Any curved or angled corners

With accurate measurements, you can confidently choose caravan fitted sheets and mattress protectors that stay secure — no bunching, no slipping, and no uncomfortable nights.

Frequently Asked Questions

Do caravan mattresses match standard UK bed sizes?

No. Most caravan mattresses are shorter, narrower, or shaped differently. Always measure before buying bedding.

Should I include my mattress topper in the depth measurement?

Yes. Measure the total depth including anything that remains on the mattress under your sheet.

What if my mattress has a curved corner?

Measure the full size first, then note which corner is curved and provide those details when ordering shaped caravan bedding.

Final Tip

Taking five extra minutes to measure properly can save you the frustration of ill-fitting sheets. Well-fitted caravan bedding not only looks better but improves sleep quality — helping you enjoy every trip to the fullest.