Buying bedding seems simple—until you’re trying to match a duvet cover to your comforter or wondering why your fitted sheet keeps slipping off. That’s where understanding bedding sizes comes in.
In this guide, FADFAY breaks down the most common bed sizes, their exact measurements, and what size bedding fits best for each. Whether you're shopping for a child’s room, a guest bed, or your master suite, this reference will help you get the perfect fit every time.
1. Twin Size
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Mattress Dimensions: 38" x 75" (96.5 x 190.5 cm)
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Best For: Kids, bunk beds, daybeds, small guest rooms
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Suggested Bedding Sizes:
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Fitted Sheet: 39" x 75"
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Flat Sheet: 66" x 96"
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Duvet Cover/Comforter: 68" x 86"
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Quilt: 68" x 86"
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FADFAY Tip: A twin is perfect for tight spaces. Our floral twin-size quilt sets make even small rooms feel bright and welcoming.
2. Twin XL Size
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Mattress Dimensions: 38" x 80" (96.5 x 203 cm)
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Best For: College dorms, tall teenagers
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Suggested Bedding Sizes:
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Fitted Sheet: 39" x 80"
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Flat Sheet: 66" x 100"
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Duvet Cover: 68" x 90"
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Quilt: 68" x 90"
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Note: Twin XL and regular twin comforters are often interchangeable, but fitted sheets are not. Always double-check the mattress length.
3. Full (Double) Size
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Mattress Dimensions: 54" x 75" (137 x 190.5 cm)
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Best For: Solo sleepers who want more room, guest rooms
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Suggested Bedding Sizes:
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Fitted Sheet: 54" x 75"
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Flat Sheet: 81" x 96"
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Duvet Cover: 80" x 90"
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Quilt: 86" x 90"
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FADFAY Tip: Our full-size washed cotton quilts are ideal for vintage-inspired guest rooms or cozy couples' beds in smaller homes.
4. Queen Size
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Mattress Dimensions: 60" x 80" (152 x 203 cm)
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Best For: Couples, master bedrooms, most standard beds
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Suggested Bedding Sizes:
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Fitted Sheet: 60" x 80"
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Flat Sheet: 90" x 102"
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Duvet Cover: 90" x 92"
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Quilt: 90" x 96"
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Why It’s Popular: Queen size is the most common mattress size in the U.S. It offers enough space for two people without overwhelming the room.
5. King Size
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Mattress Dimensions: 76" x 80" (193 x 203 cm)
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Best For: Couples who want extra space, families co-sleeping
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Suggested Bedding Sizes:
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Fitted Sheet: 76" x 80"
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Flat Sheet: 108" x 102"
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Duvet Cover: 104" x 92"
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Quilt: 102" x 96" or 110" x 96"
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FADFAY Tip: If you love dramatic bedding—ruffles, floral layers, oversized quilts—king size gives you room to style luxuriously.
6. California King Size
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Mattress Dimensions: 72" x 84" (183 x 213 cm)
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Best For: Tall sleepers, large master bedrooms
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Suggested Bedding Sizes:
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Fitted Sheet: 72" x 84"
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Flat Sheet: 108" x 102"
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Duvet Cover: 104" x 96"
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Quilt: 110" x 96"
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Note: California King is longer and narrower than a standard king. Be sure to choose specifically sized fitted sheets and comforters to avoid poor fit.
7. Other Sizes You Might Encounter
Crib/Toddler
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Mattress: 28" x 52"
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Look for lightweight, breathable fabrics like muslin or cotton, preferably OEKO-TEX certified for safety.
Split King
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Two Twin XL mattresses side by side, often on adjustable bases.
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You’ll need 2 Twin XL fitted sheets and 1 King-size flat sheet, duvet, or quilt.
Common Bedding Terms to Know
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Fitted Sheet: Has elastic corners, fits snugly around the mattress.
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Flat Sheet: Also called a top sheet, lies between you and the blanket/duvet.
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Duvet Cover: A removable cover for your comforter or insert.
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Comforter: A thick, fluffy blanket often sold with a matching set.
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Quilt: A thinner, stitched blanket—ideal for layering.
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Sham: A decorative pillowcase, often with a border or closure.
FADFAY’s Final Tips for a Perfect Fit
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Always check your mattress depth. For pillow-top or extra-deep mattresses, opt for deep-pocket fitted sheets (15"–18").
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Want a more elegant look? Size up your quilt or duvet cover for more drape.
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Mix & match layers. A full-size quilt with a queen-sized duvet on top gives dimension and comfort.
Conclusion: Fit Matters Just as Much as Fabric
At FADFAY, we believe bedding should not only feel good—it should fit beautifully. From romantic ruffled queen sets to cozy twin quilts for kids, each of our pieces is designed with size, softness, and style in mind.
With this guide, you can confidently choose bedding that fits your mattress and your aesthetic—so every night feels like a dream.
