• Off White 100% Cotton Percale Tru Flat Sheet with Pillow Shams - Overhead View | MATTEO
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Tru Flat Sheet

Tru Flat Sheet

100% Cotton | 400 Thread Count | Percale Weave | Garment-Dyed

$110
$275 $110
Sale Sold out

MATTEOX Exclusive, 40% discount auto-applies at checkout.

Color Off White
Size Size guide

Description

Tru flat sheets are finished with a minimal 1/4" hem. Darker colors feature a contrasting white top stitch detail.

We recommend using a King flat sheet for a Cal King bed and a Queen flat sheet for a Full bed.

  • 100% Cotton
  • Garment-washed and dyed using non-toxic dyes
  • Percale Weave
  • 400 Thread count

Related Searches
Tru Sheet Set, Tru, Percales, Sei Flat Sheet

Fabric

When thread count became all the rage, we were disappointed with some of the gimmicks that were being used to declare absurdly high thread counts. Especially in percale fabrics. Thread count is simply a measurement of how many threads are in one square inch of fabric. A percale is a plain weave (or 1-over-1 structure) it is very challenging to weave a percale in very high thread counts; you can only pack so many threads into one square inch!

We love percale, so we decided to make the highest thread count percale possible using a very thin 100 singles cotton yarn. This is why we called it Tru(e). It is indeed a true 400 thread count percale with a light soft crispness that makes for a wonderful sleep.

Care Details

Wash

Wash should be separated into light & dark colors. Do not overload machine as this will damage long cotton fibers. We recommend a lukewarm wash cycle with a gentle detergent & a cool rinse.

Bleach may be used on white cotton bed linens only. Avoid using products that contain whitening agents such as chlorine bleach, alpha hydroxy acids and benzoyl peroxide on garment-dyed items. The reactive dyes used for garment-dyeing are not resistant to these whitening agents.

The largest challenge with garment-dyeing is the truth that it is an art, and not a science. We must allow for a shade variation of +/- 10% from dye-lot to dye-lot.

Learn more about Garment-Dyeing.

Drying

Tumble dry with low heat.Remove bed linens promptly from the machine to reduce wrinkling. For best results, line dry.

Ironing

We at MATTEO tend to prefer a lived-in look, as such, you don't find us ironing our sheets too frequently. If you prefer a crisp looking bed, our cotton bed linens should be pressed while slightly damp using the Lightweight Cotton or Medium setting.

Size
inches cm
King 118 x 111 300 x 282
Queen 100 x 111 254 x 282
Twin 79 x 106 201 x 269

Important Notice

All products purchased from the MATTEOX clearance page are samples that might exhibit visible flaws, including, but not limited to, off-color shades, incorrect threads, and faded edges. Products purchased in the same color might be different tones owing to differences from their respective dye lots. Products purchased at 50% off are eligible for a full refund. Products purchased at 60% off are only eligible for exchanges or store credit. Products purchased at 80% off or below are FINAL SALE.

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Frequently asked questions

What is the thread count and weave of the Tru Flat Sheet?
The Tru Flat Sheet is 100% cotton, woven in a percale (plain 1-over-1) structure at a true 400 thread count. That number is genuine: percale's construction makes it physically impossible to inflate thread counts the way multi-ply yarns can in other weave types. MATTEO used a very fine 100 singles cotton yarn to reach this count, which produces a sheet with a light, soft crispness rather than the heavy feel common in high-thread-count sateen.

How does a 400 thread count percale compare to higher thread count sheets?
Thread count in a percale is a direct measure of threads per square inch in a plain weave; there is a physical ceiling on how many threads fit. Many sheets advertised at 600, 800, or 1000 thread count use multi-ply or twisted yarns to reach those figures, which does not translate to a finer hand. The Tru Flat Sheet's 400 thread count is a verifiable single-ply count, resulting in a crisper, cooler sleeping surface than inflated-count alternatives. For a deeper explanation, see MATTEO's percale collection.

Is the Tru Flat Sheet good for hot sleepers or warm climates?
Percale's plain weave is one of the most breathable cotton constructions available, and the Tru Flat Sheet's 100 singles yarn keeps the fabric lightweight. The result is a sheet that releases heat rather than trapping it, which makes it well-suited to warm climates and hot sleepers. The garment-wash finish also relaxes the weave slightly, adding to its airflow without sacrificing the characteristic crispness percale is known for.

What sizes are available, and which size fits a Cal King or Full bed?
The Tru Flat Sheet is available in King (118 x 111 inches), Queen (100 x 111 inches), and Twin (79 x 106 inches). MATTEO recommends sizing up: use the King flat sheet on a Cal King bed and the Queen flat sheet on a Full bed. This accounts for the extra tuck-in depth those mattress configurations require.

Are the dyes used in the Tru Flat Sheet safe for sensitive skin?
The Tru Flat Sheet is garment-washed and dyed using non-toxic dyes, which is MATTEO's standard across all garment-dyed cotton bedding. The reactive dyes bond deeply to the fiber during the dyeing process, so there is no surface coating that can irritate skin. Because these dyes are not resistant to chlorine bleach or whitening agents like alpha hydroxy acids and benzoyl peroxide, MATTEO recommends keeping those products away from garment-dyed colors to preserve both the color and the fabric integrity.

How should I wash and care for the Tru Flat Sheet?
Separate lights and darks before washing, and avoid overloading the machine, which can stress the long cotton fibers. Wash on a lukewarm cycle with gentle detergent and a cool rinse, then tumble dry on low heat, removing promptly to limit wrinkling. Line drying gives the best result. Bleach is safe on white cotton only; all garment-dyed colors should stay away from chlorine bleach and whitening agents. If pressing is needed, do so while slightly damp on the Lightweight Cotton or Medium iron setting.

What is the finish detail on the Tru Flat Sheet, and does it differ by color?
Every Tru Flat Sheet is finished with a minimal 1/4-inch hem for a clean, low-profile edge. Darker colorways, including Coal, Fig, Night, and Bark, add a contrasting white top-stitch detail that makes the hem a deliberate design element rather than just a functional finish. The garment-wash process gives all colors a relaxed hand from the first use.

Can I buy the Tru Flat Sheet as part of a full sheet set?
Yes. The Tru Flat Sheet is sold individually and also as part of the Tru Sheet Set, which includes the flat sheet, fitted sheet, and pillowcases in one coordinated purchase. Both options are available across the full color range, from neutral White, Off White, and Greige to deeper tones like Coal, Fig, and Night. The Tru collection is also available in the percale collection alongside other MATTEO cotton percale offerings.