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    Flat foam dog bed mattress with grey Oxford cover, black piped border and beige front tag
    German Shepherd lying on the flat foam dog mattress with green grass in the background
    Close-up of a hand pressing into the Oxford cover of the foam dog mattress near the piped edge
    Senior dog with a grey muzzle resting on the foam mattress in a pre-war New York apartment
    The grey foam dog mattress tucked beside a sofa in a Brickell apartment, blending into the room
    Flat foam dog mattress shown square format
    The flat foam dog mattress staged empty in a Brickell living room with a woman offering a treat to her attentive German Shepherd blurred in the background
    German Shepherd sitting upright on the flat foam dog mattress facing the camera, black piped border visible
    Flat foam dog bed mattress with grey Oxford cover, black piped border and beige front tag
    German Shepherd lying on the flat foam dog mattress with green grass in the background
    Close-up of a hand pressing into the Oxford cover of the foam dog mattress near the piped edge
    Senior dog with a grey muzzle resting on the foam mattress in a pre-war New York apartment
    The grey foam dog mattress tucked beside a sofa in a Brickell apartment, blending into the room
    Flat foam dog mattress shown square format
    The flat foam dog mattress staged empty in a Brickell living room with a woman offering a treat to her attentive German Shepherd blurred in the background
    German Shepherd sitting upright on the flat foam dog mattress facing the camera, black piped border visible

    Flat Foam Dog Bed Mattress | Waterproof | Washable Cover | Small to 2XL

    $179.00
    $179.00
    Size: XL
    In - stock and ready to ship

    Free Shipping

    30-Day Returns

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    Product Details

    A Flat, Clean Surface Your Dog Actually Wants to Sleep On. Built with a solid foam base that cushions from the floor up, a smooth Oxford surface that stays cool, and a waterproof liner that keeps the foam dry underneath. The cover unzips, goes in the washing machine, and comes back just as clean. Small through 2XL, fits crates and elevated frames as well as the floor.

    ✅ Cushioned off the floor, not just laid on it — the foam base lifts your dog off hard, cold surfaces and holds their weight without flattening out.

    ✅ Cool enough for warm weather — the smooth Oxford surface does not trap heat the way plush fabric does, so your dog stays comfortable in summer.

    ✅ The cover goes in the machine — unzip it, wash it, put it back. The waterproof liner keeps the foam underneath dry no matter what.

    Shipping & Returns

    Every order ships free within the United States. Most orders begin processing the same business day or the next and arrive within 3–7 business days after shipment. You'll receive a tracking number by email as soon as your package is handed to the carrier.

    For international orders, delivery typically takes 7–10 business days after shipment.

    Specs

    Materials: Solid foam base, 600D Oxford cover, waterproof liner, polyester fill

    Surface: Smooth Oxford cloth, cool to the touch

    Waterproof: Inner liner

    Care: Removable cover, machine washable (use wash bag). Bed regains fullness approximately 1 hour after opening.

    Closure: Hidden zipper

    Use: Floor, crate, elevated bed frame

    Color: Deep grey

    Size Guide

    XL: 41.3" x 27.5" x 3.9" (105 x 70 x 10 cm) — Dogs up to 88 lbs (40 kg)

    2XL: 47.2" x 31.5" x 3.9" (120 x 80 x 10 cm) — Dogs up to 110 lbs (50 kg)

    Measure your dog nose to tail while they are lying stretched out, then add a few inches. A dog that sleeps curled will be comfortable on the XL; one that sprawls full length wants the 2XL.

    Note: Bed ships vacuum-packed and reaches full size within approximately one hour of opening.
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    Flat foam dog bed mattress with grey Oxford cover, black piped border and beige front tag

    Flat Foam Dog Bed Mattress | Waterproof | Washable Cover | Small to 2XL

    From $179.00
    From $179.00
    XL

    FREE SHIPPING

    30-DAY SATISFACTION GUARANTEED

    CLEAN, SIMPLE, COMFORTABLE

    The Mattress That Stays That Way.
    Foam That Does Not Bottom Out

    The solid foam base holds its form under daily use. Your dog does not sink through to the floor, and the bed does not need replacing because the middle has gone flat.

    Waterproof Before It Reaches the Foam

    The liner sits between the cover and the foam so accidents, wet paws, and spills stop at the surface. The foam underneath stays dry, clean, and structurally intact.

    Fits Where a Crate Mattress Should

    The flat profile and straight edges fit inside standard crates without bunching or folding up at the sides. Works on elevated frames too — the foam sits flat wherever you put it.
    Close detail of the flat foam dog mattress corner on a white background, showing the black piped border and beige tag

    A BED THAT EARNS ITS PLACE

    The details that keep it simple.
    A hand unzipping the washable cover off the flat foam dog mattress while a German Shepherd waits beside it

    Off and Washed in Two Minutes

    The hidden zipper gives full access to the cover. Pull it off, put it in a wash bag, run the machine. The foam block stays behind, dry and ready for the clean cover to go back on.
    German Shepherd sprawled flat on his side across the cool Oxford surface of the foam mattress

    Cool in Summer, Comfortable Year-Round

    The smooth Oxford surface does not hold heat the way plush or sherpa beds do. Dogs that tend to overheat or seek out cooler spots settle onto this one and stay.
    A mini dachshund on a small foam mattress beside a German Shepherd on a large one, same design

    Five Sizes, One Consistent Design

    Small enough for a crate insert, large enough for a giant breed. The same foam depth, the same Oxford cover, the same hidden zipper — just scaled to the dog.
    The flat foam dog mattress staged empty beside a sofa in a Brickell apartment, dog and person blurred behind

    Deep Grey Goes Anywhere

    A neutral colorway that sits alongside any floor, any furniture, and any room without needing to be hidden or matched. Simple by design.

    THE DETAILS

    What's Inside. Why It Matters.

    Flat foam dog mattress corner detail cutout with the background removed

    Solid Foam Base

    A single block of supportive foam that cushions your dog from the floor. Dense enough to hold its shape under daily use, consistent from edge to edge so there are no soft spots.

    600D Oxford Cover

    A tightly woven, abrasion-resistant fabric that resists surface wear and stays smooth to the touch. Cool enough for warm weather, durable enough for dogs who turn and dig before settling.

    Waterproof Inner Liner

    A sealed layer between the cover and the foam that stops liquid from reaching the base. Keeps the foam clean and structurally sound regardless of what the cover goes through.

    Hidden Zipper

    Set into the base hem so it is out of reach during use. Full-length opening so the cover comes away completely for washing without tearing or forced removal.

    WHY DENZO PETS?
    Denzo Pets
    #1

    BUILT AROUND YOUR PET.

    We only sell products we'd use with our own pets. Every feature is designed with your dog's comfort and safety in mind.

    Denzo Pets
    #2

    WORKS OUT OF THE BOX.

    No complicated setup. No confusing manuals. Our products are designed to be intuitive from the moment you unbox them.

    Denzo Pets
    #3

    WE STAND BEHIND IT.

    30-day satisfaction guarantee. If it doesn't work for your pet, we make it right.

    Free delivery

    Free shipping in all US states

    Satisfaction Guaranteed

    Up to 30 days to return your items.

    Payment 100% secured

    Multiple payment options offered.

    Customer service

    Monday-Friday: 9AM-5PM

    Still Need Help?

    Shoot our team an email & we’ll get
    back to you ASAP

    Contact us Contact us

    Frequently Asked Questions
    How quickly will I receive my order?

    Orders ship within 1 business day. Domestic delivery takes 3-7 business days.

    What if the product doesn't fit?

    Return it within 30 days. We know sizing can be tricky with pets — if the fit isn't right, contact us and we'll help you find the correct size or process a return.

    What if my order arrives damaged?

    Email us with your order number and a photo. We'll replace it — no back and forth.

    Can I modify or cancel my order after placing it?

    If it hasn't shipped yet, yes. Contact us with your order number as soon as possible. Once it's dispatched, we can't make changes but you can still return within 30 days.

    What if I'm missing an item from my order?

    Reach out to our support team with your order number and let us know what's missing. We'll verify the shipment and get the missing item sent out as quickly as possible.

    How do I track my order?

    You'll get a tracking number by email as soon as your order ships, usually within one business day.

    How do I reach customer service?

    Email us anytime at support@denzopets.com with your order number; we respond Monday–Friday, 9 AM–5 PM.
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