YOUR GUIDE TO A BETTER NIGHT'S SLEEP

Bedding Size Chart

Find the Right Fit for Your Bed

Choosing the right bedding size makes a difference in both comfort and appearance. Whether you have a Twin, Queen, King, or California King bed, understanding standard U.S. bedding measurements can help you find sheets, comforters, duvet covers, and pillowcases that fit your sleeping space.

Measure First. Sleep Better.
Explore our bedding size guide to compare mattress dimensions, sheet sizes, comforter measurements, and pillow sizes before making your selection.

1. Understanding U.S. Bedding Sizes

Bedding in the United States is generally categorized by mattress size. The most common options include Twin, Twin XL, Full, Queen, King, and California King.

Although these categories provide a useful starting point, bedding products do not all follow identical dimensions. Sheet construction, mattress thickness, comforter design, and manufacturer specifications can affect the final fit.

All measurements in this guide are shown primarily in inches (in), the standard unit commonly used for U.S. bedding products. Approximate metric equivalents are included for additional reference.

2. Standard U.S. Mattress Size Chart

Start by identifying your mattress size. This is the most important measurement when selecting fitted sheets, flat sheets, and other bedding accessories.

Mattress Size	Width	Length	Approx. Metric
Twin	38"	75"	97 × 191 cm
Twin XL	38"	80"	97 × 203 cm
Full / Double	54"	75"	137 × 191 cm
Queen	60"	80"	152 × 203 cm
King	76"	80"	193 × 203 cm
California King	72"	84"	183 × 213 cm

Helpful Tip: A King mattress is wider than a California King, while a California King is longer. These two sizes are not interchangeable when selecting fitted sheets.

3. Flat Sheet and Fitted Sheet Size Guide

Flat sheets and fitted sheets serve different purposes. A fitted sheet is designed to cover the mattress and stay in place, while a flat sheet provides an additional layer between the sleeper and the comforter or blanket.

Fitted Sheet Sizes

Fitted sheets should match the mattress width and length. Their pocket depth must also accommodate the mattress thickness.

Size	Fitted Sheet Width	Fitted Sheet Length
Twin	38"	75"
Twin XL	38"	80"
Full	54"	75"
Queen	60"	80"
King	76"	80"
California King	72"	84"

The dimensions above represent the corresponding mattress footprint, not the complete cut dimensions of the fabric. Fitted sheet construction and pocket depth vary by product.

Flat Sheet Size Reference

Flat sheets are generally larger than the mattress because they need extra fabric for side coverage and tucking. The following are approximate reference dimensions, not universal manufacturing standards.

Bed Size	Approx. Sheet Width	Approx. Sheet Length
Twin / Twin XL	66"	96"
Full	81"	96"
Queen	90"	102"
King / California King	108"	102"

Flat sheet dimensions vary between brands and collections. Always check the listed product measurements before purchasing.

4. Comforter and Duvet Cover Size Chart

Comforters and duvet covers are designed to provide coverage beyond the mattress edges. Their dimensions may vary significantly depending on the brand, design, filling, and intended drape.

Use the following approximate ranges as a general shopping reference. They are not fixed standards or a guarantee of compatibility between different manufacturers.

Bed Size	Approx. Width	Approx. Length
Twin / Twin XL	66–68"	86–90"
Full / Queen	86–90"	90–96"
King	102–110"	90–96"
California King	104–110"	94–100"

Important: Comforter and duvet cover sizing is not fully standardized. For the best fit, compare the exact comforter dimensions with the duvet cover dimensions rather than relying on the bed size label alone.

5. Pillow and Pillowcase Size Chart

Pillows come in several standard U.S. sizes. Choosing the right pillowcase helps maintain a neat appearance and a comfortable fit.

Pillow Type	Width	Length
Standard	20"	26"
Queen	20"	30"
King	20"	36"
Euro Square	26"	26"
Body Pillow	20"	54"

These are common nominal pillow dimensions. Actual pillow and pillowcase measurements may vary by manufacturer and product construction.

Standard Pillowcase

A common choice for Standard pillows, frequently used on Twin, Twin XL, and Full beds.

Queen Pillowcase

Designed for longer Queen pillows, offering additional length compared with a Standard pillowcase.

King Pillowcase

Designed for King pillows, providing extra length for wider beds and larger pillow arrangements.

6. Mattress Thickness and Fitted Sheet Pocket Depth

Mattress thickness is an important measurement that is often overlooked. Two mattresses may have the same width and length but require different fitted sheet pocket depths.

Measure the mattress from its bottom edge to its highest sleeping surface. If you use a mattress topper or protector, include its additional height when checking the required pocket depth.

Mattress Thickness	General Fitted Sheet Category
Up to 12"	Standard Pocket
13–16"	Deep Pocket
17–20"	Extra-Deep Pocket

These are general shopping categories rather than universal specifications. Actual pocket depth labels and usable fit vary by manufacturer.

How to Check the Correct Pocket Depth

1. Measure the mattress thickness.

2. Include any topper or protector that will remain on the mattress.

3. Check the fitted sheet's stated pocket depth.

4. Follow the manufacturer's guidance on the maximum mattress thickness the sheet can accommodate.

7. Which Bedding Size Should You Choose?

The best bedding size depends on your mattress dimensions, sleeping preferences, and the appearance you want to create.

Twin and Twin XL

Twin bedding is commonly used for children's rooms, guest rooms, and single sleepers. Twin XL offers the same width with additional length.

Good to Know: Twin XL sheets are longer than regular Twin sheets. Check the exact dimensions before selecting bedding.

Full / Double

Full-size bedding is suitable for a single sleeper who prefers additional width or for smaller bedrooms where a larger mattress may not fit comfortably.

Good to Know: Full and Double generally refer to the same standard U.S. mattress size.

Queen

Queen is a popular option for couples and individual sleepers who prefer more room. It is also commonly used in primary bedrooms and guest rooms.

Good to Know: Select Queen fitted sheets and check the comforter dimensions for your preferred coverage.

King

King bedding provides a wider sleeping surface and is often chosen by couples who want additional personal space.

Good to Know: King fitted sheets and King duvet covers should be checked against the actual mattress and insert dimensions.

California King

California King is longer and slightly narrower than a standard King mattress. It can be a suitable option for sleepers who prefer additional mattress length.

Good to Know: California King bedding has different proportions from standard King bedding. Always check the size label and measurements.

8. How to Measure Your Mattress for Bedding

If you are unsure about your mattress size, take a few simple measurements before purchasing new bedding.

STEP 01

Measure the Width

Measure across the mattress from one side edge to the other.

STEP 02

Measure the Length

Measure from the head of the mattress to the foot of the mattress.

STEP 03

Measure the Thickness

Measure vertically from the bottom edge to the top sleeping surface, including any topper you intend to keep in place.

STEP 04

Compare with Product Specifications

Match your measurements with the bedding product dimensions, fitted sheet pocket depth, and any other relevant specifications.

9. Tips for Choosing the Right Bedding

Check the Mattress Size Label

Start by identifying whether your mattress is Twin, Twin XL, Full, Queen, King, or California King.

Consider Mattress Thickness

Choose a fitted sheet with suitable pocket depth to accommodate your mattress and any additional layers.

Compare Duvet and Comforter Dimensions

Do not rely on the bed size label alone. Compare the actual measurements of the duvet insert and cover.

Think About Your Preferred Coverage

Some people prefer a comforter that covers more of the mattress sides. Consider your bed height and desired drape when choosing its dimensions.

Check the Complete Product Description

Review the product measurements, included pieces, fabric details, and care instructions before purchasing.

10. Bedding Size Selection Checklist

Before placing your order, review this simple checklist to help ensure your new bedding is the right fit.

MATTRESS

✓ Confirm the mattress size.

✓ Measure the width and length.

✓ Check the mattress thickness.

SHEETS

✓ Match the fitted sheet to the mattress size.

✓ Confirm the pocket depth.

COMFORTER & DUVET

✓ Check the actual comforter dimensions.

✓ Match the duvet cover to the insert.

PILLOWS

✓ Confirm the pillow dimensions.

✓ Choose the corresponding pillowcase size.

11. Frequently Asked Questions

What is the difference between King and California King bedding?

A standard King mattress measures 76 × 80 inches, while a California King measures 72 × 84 inches. King is wider, while California King is longer. Their fitted sheets are not interchangeable.

Are Full and Double bedding sizes the same?

Yes. Full and Double generally refer to the same standard U.S. mattress dimensions of 54 × 75 inches.

Can I use Queen sheets on a Full mattress?

Queen sheets are designed for a wider and longer mattress than Full sheets. A Queen fitted sheet may not provide a secure fit on a Full mattress. It is best to select the matching size.

Can I use King sheets on a California King mattress?

Standard King and California King mattresses have different dimensions. Their fitted sheets should be selected separately to ensure a proper fit.

What is a deep-pocket fitted sheet?

A deep-pocket fitted sheet is designed to accommodate thicker mattresses. Check its stated pocket depth and maximum compatible mattress thickness before purchasing.

Are comforter and duvet cover sizes standardized?

No. Their dimensions can vary between manufacturers and collections. Compare the actual width and length of the duvet insert and cover for the best fit.

What size pillowcase should I buy?

Choose a pillowcase based on your pillow's actual dimensions. Standard, Queen, King, and Euro pillows have different proportions.

What should I do if my mattress is an unusual size?

Measure its exact width, length, and thickness. Compare these measurements with the product specifications to identify a suitable bedding option.

COMFORT STARTS WITH THE RIGHT FIT

Find Your Perfect Bedding Size

From carefully fitted sheets to beautifully coordinated comforters and pillowcases, choosing the right dimensions helps create a comfortable and inviting bedroom. Use this guide to make your next bedding selection with greater confidence.

Decorvixo — Thoughtfully Chosen. Beautifully Lived.