A dog asleep on The Flat washable orthopedic dog mattress in an Australian living room

The Flat — Washable Orthopedic Dog Mattress

Coffee / L — 60 × 40 cm
$129.00
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A dog asleep on The Flat washable orthopedic dog mattress in an Australian living room
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The Flat — Washable Orthopedic Dog Mattress

$129.00
Color
Size

A flat foam mattress in a zip-off cover. No rim, no sides, no shape to work around.

For dogs that sprawl. A bolster bed forces a big dog to fold, and plenty of them give up and hang off the edge instead. A flat mattress gives them the whole surface, and it is the easiest shape to fit into a crate, under a desk, or alongside a bed.

Sizes

Large — 60 × 40cm
XL — 75 × 45cm
XXL — 100 × 70cm

On a flat mattress the external size and the usable sleeping area are almost the same thing, because there is no rim taking up room. That makes this the easiest shape to size and the most forgiving if you are between two.

Before you order

Measure your dog stretched out on their side, nose to the base of the tail — not the tip — and add 15cm if they curl, 30cm if they sprawl.

If you land between sizes on this bed, size up. There is no rim to make the larger one feel oversized in the room.

Our method

The size on the box is not the space your dog gets.

External footprint
Usable sleeping area
Entry height

Most listings give the outside of the bed. That number includes the bolster, which your dog cannot lie on.

We publish the external footprint in centimetres and tell you where the rim eats into it. We are measuring the internal area and will publish it as it is confirmed.

Plain language

“Orthopaedic” is not a regulated word.

Supportive foam baseHolds its shape under weight. Returns when your dog gets up.
Loose polyester fillMigrates to the edges within weeks, leaving a hollow where the weight goes.

Anyone can print the word on a bag of polyester fill.

We publish what each bed is made of rather than just the word. We don’t claim a bed treats anything — that’s a question for your vet.

What we don’t know yet

Density is the number that predicts flattening.

Foam densityNot yet published

It is also the one most stores never print. We are collecting verified figures with test reports from our manufacturers.

Until a figure is evidenced we will not print it. An unsupported number is worth less than an honest gap.

How this bed compares

Every line below is something we do or don't do. None of it is a claim about what a bed does to your dog.

The Flat — Washable Orthopedic Dog Mattress

The Flat — Washable Orthopedic Dog Mattress

  • Foam base that returns to shape
  • We say when a figure is unverified
  • Dog bed covers come off completely
  • Measuring method on this page
  • No claim a bed treats anything
A typical basic dog bed

A typical foam bed

  • Loose fill that migrates to the edges
  • Silence where the data should be
  • Cover often sewn in
  • A breed chart
  • Claims it fixes hips and joints

We would rather show our working than tell you a bed fixes anything.

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