Envelope Closure Pillowcases

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Size Guide

The Perfect Percale Pillowcase

Our Envelope Closure Pillowcases have a beautiful side envelope closure to keep your pillow hidden at all times. These pillowcases sleep cool and crisp. Perfect for a hot summer day. Upgrade your sleep experience with extra pillowcases so you always have a set on hand.

    • Design

      A pillowcase is a personal thing. You rest your head on one 365 nights a year. We set out to design a set of pillowcases you would love to sleep on. Every. Single. Night. Our beautiful envelope closure keeps your pillow neatly tucked in. The face has a clean look with no lines. Our luxe combination of Percale weave and Supima cotton deliver a great sleep night after night, and look great doing it. Pillowcases see a lot of use, and abuse, so pick up an extra set. 

      1,000+ 5-Star Reviews

      We're loved by The Los Angeles Times, Gear Patrol and Martha Stewart Weddings but proven by our customers. We're the highest rated bedding available at any price. 

      Seed-to-Stitch® Made in USA

      100% ‘Seed-to-Stitch’ Made in the USA bedding. No imports here. Our entire manufacturing process - from growing the cotton, to spinning the yarn, to weaving the fabric, to cutting and sewing - is done in America. Learn more about our manufacturing partners here. 

      Supima® Cotton

      Our sheets are made from California-grown Supima®, one of the finest - and rarest - cottons in the world. We wouldn’t settle for just any cotton, less than 1% of all cotton produced meets the criteria to be labeled Supima®. Read more about Supima® cotton here.

      Percale Weave, 250 Thread-Count

      We chose the Percale Weave because it is cool and crisp, highly breathable, exceedingly durable, and will continue to get better with use. Despite what you may have heard, 250 thread-count is the ideal thread count for a great night’s sleep. Learn more about thread-count here. 

      Radical value

      If we sold our sheets at a department store they would cost $400 a set - why pay more? We've cut out all the things that drive up prices; like distributors, big store fronts and pricey marketing campaigns. And, we sell our sheets direct to you - straight from the factory floor to your bedroom - without a middleman or their mark-up.  

      100 Night Sleep Trial

      You’ve got 100 nights to decide if you like our sheets. If you're unhappy with them for any reason, we’ll cover the cost of return shipping, and issue a full refund. FREE DOMESTIC SHIPPING. 

      American made pillowcases


      • 2 Standard or King Pillowcases per set
      • Standard Pillowcases measure 20" x 27"
      • King Pillowcases measure 20" x 37"
      • Learn why 250 is the PERFECT thread-count HERE
      • We only use single-ply yarns. 
      • Learn more about how our sheets are made HERE.
      • FREE SHIPPING in the USA.

    Customer Reviews

    Based on 68 reviews
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    A Authenticity 50 Customer
    Bruce B.
    United States

    Wonderful sheets at great price!

    I made my first experiment with Authenticity 50 by purchasing plain white pillow cases. The quality is very high and the percale was one of my first variances from sateen—so appreciated the guide to fabrics on the A50 website! The cases feel great and I have already ordered more. Thanks and congrats on a great product and concept!

    Ruth F.
    United States

    softest cases ever!!

    these cases are awesome, they wash up like a dream, and are nice and crisp right out of the dryer, (I purchased an extra set), there's nothing like a fresh pillow case - I like the end as it stays around the pillow - so worth every penny !!

    Brandon A.
    United States

    Best sheets ever

    The envelop pillow cases are fantastic. They close well and keep the pillow inside, plus they’re super soft.

    denise c.
    United States

    Everyone loves them!

    I recently completed a remodel on a vacation home. I bought 8 sets of sheets. My guest have all raved about the sheets! Most have asked where to purchase!

    Travis M.
    United States

    Excellent sheets and customer service

    Every bed in our home has a set of Authenticity 50 sheets. They are simply the most comfortable sheets on the market. We never want to leave our bed in the mornings and can't wait to lie on them each night. They are also very durable and in great condition after numerous washes. Beyond the sheets, the customer service is the best of any company I've ever experienced. They are extremely prompt, helpful, and proud of their USA-made products.


    Size Chart
    Size Flat Fitted
    California King 108 x 102 72 x 84 x 16
    King 108 x 102 78 x 80 x 16
    Queen 90 x 102 60 x 80 x 16
    Full 81 x 96 54 x 75 x 16
    Twin XL 66 x 102 39 x 80 x 16
    Twin 66 x 96 39 x 75 x 16
    Standard Pillowcases 20 x 27
    King Pillowcases 20 x 37
    Duvet Cover Twin 70 x 90
    Duvet Cover Queen 90 x 92
    Duvet Cover King 108 x 94
    Width x Length x Depth in Inches