US Bed Sheet Sizes Explained: Twin XL to California King (2026 Importer's Guide)

US bed sizes are the single most common reason a first import order gets rejected by an American buyer. A "queen" in India, the UK and the United States are three different products, and a fitted sheet cut to the wrong pocket depth is unsellable no matter how good the cotton is. This guide gives you the exact numbers to put on a spec sheet.

US mattress sizes at a glance

Queen is roughly 45–50% of US sheet-set volume. King and Twin XL follow. If you are launching a private label with limited SKUs, start Queen and King, then add Twin XL.

Flat sheet dimensions

Flat sheets in the US run generously. Undersized flats are the number-one complaint in Amazon reviews for imported sheet sets.

Fitted sheet pocket depth — the deal-breaker

American mattresses are deep. Pillow-tops and hybrid foam mattresses commonly run 14–18 inches, and buyers filter Amazon listings by pocket depth.

• Standard pocket: 12 inches (30 cm) — fits older or basic mattresses only
• Deep pocket: 15 inches (38 cm) — the safe default for US retail
• Extra deep pocket: 18 inches (46 cm) — pillow-top and hybrid mattresses

Specify all-around elastic on every fitted sheet, not just corner elastic, and state the elastic width (a 3/4-inch knitted elastic holds far better than a 1/2-inch woven one).

Pillowcase sizes

Queen sheet sets in the US normally ship with Standard pillowcases; King sets ship with King cases. Include a 4-inch tuck flap on hotel-style cases.

Duvet cover and comforter sizes

Note that the US market commonly merges Full/Queen and King/Cal King in duvet covers — this reduces your SKU count meaningfully.

Shrinkage and measurement tolerance

Put these on the PO or you will argue about them later:

1. Residual shrinkage after three home washes: ≤ 4% (sanforised finish)
2. Cut-and-sew measurement tolerance: ± 1 inch (2.5 cm) on flats, ± 0.5 inch on fitted pockets
3. Measure after finishing and washing, not off the loom
4. AQL 2.5 major / 4.0 minor for retail, AQL 1.5 for premium DTC

Labelling requirements for the US market

Selling into the United States means FTC compliance, not just good stitching:

• Fibre content by percentage (FTC Textile Fiber Products Identification Act)
• Country of origin — "Made in India"
• RN number of the US importer or brand owner
• Care instructions per the FTC Care Labeling Rule, in English
• Flammability — bedding must meet 16 CFR 1632/1633 where applicable to mattress products; sheets themselves are generally exempt, but confirm for filled products

Getting the sizing right the first time

At Royal Mills we cut and stitch to US sizing as standard at our Ahmedabad manufacturing facility — 15-inch deep pockets, all-around elastic, generously cut flats and FTC-compliant sew-in labels — from our ISO 9001:2015 facility in Ahmedabad, India. Send us your size and pocket-depth grid and we will come back with a costed spec sheet. Request a quote or browse the bed sheet range.

Related pages

• Bed sheets and sheet sets — US sizing, 200–1000TC, deep-pocket fitted sheets
• Duvet covers — Full/Queen and King/Cal King US sizing
• Pillowcases — Standard, Queen and King cases with tuck flaps
• Comforters and quilts — US fill weights and sizes
• Custom bedding and private label — your spec, sizing and branding
• United States export program — shipping, compliance and lead times for US buyers
• Importing bed linen into the USA — HTS codes, duty and labelling