Hand lifting edge of Turmerry Mattress Topper Encasement showing protective cover layers with white fabric interior.
Turmerry Mattress Topper Encasement folded showing white fabric with embossed organic cotton name pattern.
Couple sleeping peacefully on bed with Turmerry Mattress Topper Encasement visible underneath.
Close-up of Turmerry Mattress Topper Encasement fabric showing textured weave with white zipper detail.
    Early Access Black Friday SaleGOTS Global Organic Textile Standard logo, certified by Control Union, license 1084143GOTS Certified Organic Cotton

    Mattress Topper Encasement

    $89.00

    + Free Shipping

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    Same-Day ShippingMost Orders Placed By 3 PM EST Ships Same Day

    Questions? Call 984-299-6850 or chat with us

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    Why you'll love it

    • Made from GOTS certified organic cotton for a natural, chemical-free sleep.
    • Designed to be noise-free with a soft, breathable fabric.
    • Features a 4 oz. muslin non-slip backing to keep your topper in place.
    • The zipper lets you fit it on 2" or 3" latex and memory foam toppers.
    • Made from undyed and unbleached organic cotton, offering a timeless beige or off-white hue.
    • Built to last and easy to maintain with machine washing to keep the fabric fresh.

    Sleep Well, Bee Well

    Every order supports 4 sqft of wildflower habitat for pollinators.

    120-Night Return Policy

    FREE U.S. SHIPPING

    52,000+ trees planted with past orders, thanks to your support.
    Hands fitting the Turmerry Mattress Topper Encasement around a latex topper.

    Fits 2- and 3-inch toppers

    A snug, soft cover for your topper

    • Want to protect your topper from everyday wear?
    • Tired of a topper that slides around on the mattress?
    • Prefer undyed, unbleached organic cotton?

    Our Mattress Topper Encasement is a stretch knit made from GOTS certified organic cotton, left undyed and unbleached. It hugs any 2- or 3-inch topper, latex or memory foam, with no loose fabric. A 4 oz. muslin backing grips the mattress so the topper stays put, and a zipper makes it easy to put on and take off.

    Close-up of the Turmerry encasement's knit fabric and zipper.
    Stretch knit

    A snug, custom fit

    The soft knit stretches over your topper and hugs it tightly, so there's no loose fabric to bunch up or rustle under you.

    Hand lifting the edge of the Turmerry encasement to show the layers underneath.
    Non-slip backing

    Keeps your topper in place

    The underside is a 4 oz. cotton muslin that grips the mattress, so your topper doesn't slide around during the night.

    Turmerry Mattress Topper Encasement, folded.
    GOTS certified

    Undyed organic cotton

    Made from GOTS certified organic cotton, left undyed and unbleached in its natural off-white shade. It's machine washable.

    Easy on, easy off

    How the encasement goes on

    TOPPERzipper6 in6 in
    1. Open the zipper. It runs along one short side and continues 6 inches down each long side, so the opening is wide.
    2. Slide your topper in. Any 2- or 3-inch topper fits, latex or memory foam, from any brand.
    3. Zip it closed and smooth it out. The knit stretches to fit, and the muslin underside grips the mattress.

    Two ways to cover a topper

    Encasement or topper cover?

    Couple lying on a bed with the Turmerry Mattress Topper Encasement.
    This product

    Mattress Topper Encasement

    A stretch knit cover with a non-slip muslin backing.

    • Stretch knit, GOTS certified organic cotton
    • Non-slip 4 oz. muslin underside
    • One cover fits 2- or 3-inch toppers
    Turmerry Mattress Topper Cover, folded, with its zipper.
    Also available

    Mattress Topper Cover

    A simple zippered cover in 150 GSM organic cotton. See the topper cover →

    • Woven 150 GSM organic cotton
    • Sized for 2- or 3-inch toppers
    • Free installation when bought with a latex topper

    Six sizes

    Topper encasement sizes

    Every standard US size, each made to fit a 2- or 3-inch topper. Each drawing below is to scale.

    Twin

    38" x 75"

    97 x 191 cm

    Kids and single sleepers

    Twin XL

    38" x 80"

    97 x 203 cm

    Taller single sleepers and dorm beds

    Full

    54" x 75"

    137 x 191 cm

    Single adults and guest rooms

    Queen

    60" x 80"

    152 x 203 cm

    Couples and growing families

    King

    76" x 80"

    193 x 203 cm

    Couples who want more room

    California King

    72" x 84"

    183 x 213 cm

    Taller couples

    Width x length. Pick the size of your topper. The encasement fits toppers 2 or 3 inches thick.

    Care

    Encasement care instructions

    Tip: the knit is cotton, so it may shrink a little in the first wash. Air drying keeps the fit snug.

    Machine wash gently

    Take the topper out first. Wash the encasement on a gentle or delicate cycle with mild detergent, and follow the care label.

    Air dry, no high heat

    Air dry it rather than tumble drying. High heat can shrink the cotton and affect the fit.

    No bleach or harsh cleaners

    Bleach and harsh cleaning agents weaken the fibers and can change the natural color of the undyed cotton.

    Spot-clean small spills

    For minor spills, dab the spot with water and a little mild detergent. Store a spare encasement somewhere cool and dry, out of direct sun.

    Mattress Topper Encasement FAQS:

    Will it fit my mattress topper?

    Yes, if your topper is 2 or 3 inches thick. The encasement fits latex and memory foam toppers from any brand. Choose the size that matches your topper: Twin, Twin XL, Full, Queen, King or Cal King.

    What is the encasement made of?

    A stretch knit made from GOTS certified organic cotton, left undyed and unbleached in its natural off-white shade. The underside is a 4 oz. cotton muslin that helps keep your topper from sliding.

    How is it different from the Mattress Topper Cover?

    The encasement is a stretch knit with a non-slip muslin backing, and one cover fits 2- or 3-inch toppers. The Mattress Topper Cover is a simpler woven cover in 150 GSM organic cotton, sized for 2- or 3-inch toppers.

    Does it have a full wrap-around zipper?

    No. The zipper runs along one short side of the topper and continues 6 inches down both long sides, which makes the opening wide enough to get the topper in and out easily.

    Can I machine wash it?

    Yes. Take the topper out, then wash the encasement on a gentle or delicate cycle with mild detergent, following the care label. Air dry it, and avoid high heat or tumble drying.

    Will it shrink?

    Cotton can shrink a little. Air drying and avoiding high heat keep any extra shrinkage to a minimum, so the encasement keeps its snug fit.

    Is it noisy?

    No. The soft knit fits tightly with no loose fabric, so it doesn't crinkle or rustle when you move.

    What sizes are available?

    Twin (38 x 75 inches), Twin XL (38 x 80), Full (54 x 75), Queen (60 x 80), King (76 x 80) and Cal King (72 x 84).

    Can I return it?

    Yes. Unused items in their original condition can be returned within 120 nights for an exchange or a full refund. Used items are eligible for store credit through our donation process. It also comes with a 1-year limited warranty.

    Shipping and returns

    Free shipping, 120 nights to return

    Free shippingOn every order to the contiguous US
    2 to 5 business daysUsual delivery time once your order ships
    120-night returnsOn unused items in their original condition
    1-year warrantyLimited warranty
    Delivery driver handing a Turmerry box to a customer at home.

    Shipping and delivery

    Shipping is free on all orders across the contiguous USA. For Alaska, Hawaii and other US territories, we offer FedEx and USPS rates.

    Once shipped, orders usually arrive within 2 to 5 business days. Outside the US? Add items to your cart to see if your product ships to your country.

    Read our shipping and returns policy

    Warranty and returns

    Your encasement comes with a 1-year limited warranty.

    1. Return within 120 nights. Unused items in their original condition can be returned for an exchange or a full refund.
    2. Used it already? Used items are eligible for store credit through our donation process.
    3. Questions? Contact us and we'll help.
    Mother and child on a bed with the Turmerry topper encasement.