Most dog beds are sold in three sizes — Small, Medium, Large — as if every dog politely fit into one of three boxes. They don't. Here's how to choose the right one for yours.

We get this question more than any other: "What size should I get?" And we understand why. A bed that's too small leaves your dog folded into themselves like a comma. Too large, and they lose the gentle sense of being held that makes a bed feel like a bed. The difference between the two is sometimes just a few inches — but those inches matter.

The good news: there's a simple framework that works for nearly every breed, body shape, and sleeping style. We use it ourselves, and it's the same one we walk our customers through whenever they email us with a sizing question.

Step one: measure, don't guess.

Wait until your dog is fully stretched out — usually mid-nap, in their longest, laziest pose. Then measure from the tip of their nose to the base of their tail. Don't include the tail itself; tails curl, beds don't.

This number is your dog's resting length. It's the single most useful measurement you'll ever take, and it's the foundation of every sizing decision that follows.

The most common mistake

Many owners measure their dog while standing — then size the bed to that length. The problem: dogs don't sleep standing up. A standing measurement adds 4–6 inches that they'll never actually use, which means you end up with a bed that's too large, takes up more floor space than necessary, and makes your dog feel oddly adrift in the middle of it.

Step two: add the comfort margin.

Once you have the resting length, add 6 to 8 inches. This is what we call the comfort margin — the breathing room a dog needs to stretch, reposition, and circle before settling in. It's the difference between a bed that fits and a bed that feels right.

For most dogs, here's how that translates:

• Small breeds — chihuahuas, dachshunds, frenchies — typically need a 24–28″ bed.
• Medium breeds — beagles, cocker spaniels, mini poodles — typically need a 30–36″ bed.
• Large breeds — labs, goldens, shepherds — typically need a 40–48″ bed.
• Extra-large breeds — great danes, mastiffs, newfoundlands — typically need 50″ or more.

But these are just averages. Always measure first. A tall, lanky greyhound and a short, stocky bulldog can weigh the same and still need very different beds.

Step three: think about how they sleep.

Different dogs sleep in different shapes — and the right bed should match the shape they actually use, not the one you wish they did.

1. Curlers sleep tightly tucked. They love bolster beds with raised edges they can press into. Size up by 4–6 inches.
2. Stretchers sleep long and flat, often on their side. They need a flat-platform bed and the full 6–8 inch margin.
3. Sprawlers sleep on their back with all four legs in the air. They need the most space — size up by 8–10 inches and consider going one size larger than the chart suggests.

Watch your dog over a few days before you order. Their preferred sleeping shape will tell you more than any measurement ever could.

One last thought.

A great bed isn't about the largest size, the thickest foam, or the most premium fabric — though we obviously care deeply about all three. It's about quiet fit. A bed that disappears into the room. A bed your dog walks to without thinking. A bed that holds them the way they want to be held, in the shape they naturally choose.

Get the size right, and the rest follows.

Still unsure? Email us with your dog's weight, breed, and a photo of them at their most stretched. We'll recommend the right size — no purchase required.