What Size Cat Bed Should I Buy? A Sizing Guide for Every Cat

You bought the bed. It looked perfect in the photos. And now it's sitting empty while your cat sleeps in the laundry basket, the shoebox, or the two-inch gap behind your couch.

This isn't your cat being difficult. Nine times out of ten, it's a sizing problem — and it's the single most common reason a cat bed becomes expensive floor decoration instead of somewhere your cat actually wants to be.

Here's how to get the size right the first time.

Why Size Matters More Than You'd Think

It's tempting to think "bigger is better" — more room, more comfort. But cats don't experience space the way we do.

Cats are constantly assessing their environment for safety, and an enclosed, snug space is one of the ways they self-regulate stress. A review of hiding-box studies found that cats with access to a space they could tuck into showed consistently lower stress markers than cats without one. A bed that's too large can feel exposed rather than cozy — which is often why your cat is choosing the laundry basket instead.

At the same time, a bed that's too small forces your cat into a curled, cramped position they can't fully relax in. So the goal isn't "biggest bed you can afford." It's "sized to your actual cat."

How to Measure Your Cat for the Right Bed Size

Skip the guessing. This takes about two minutes, and you only need a soft measuring tape or a piece of string and a ruler.

Step 1: Catch them mid-nap. Measure while your cat is in their natural resting position — curled, stretched, whatever they actually do. Trying to measure an awake, moving cat is how you end up with the wrong numbers (and scratched hands).

Step 2: Measure nose to tail base. This is your cat's resting length — from the tip of the nose to where the tail begins, not the tip of the tail.

Step 3: Measure width at the widest point. Usually the shoulders or ribcage. This tells you how much turning-around room they need.

Step 4: Add breathing room. Add roughly 4–6 inches (10–15 cm) to your measurements. Enough to shift positions, not so much that the bed loses its cozy, enclosed feel.

If you have a kitten, size for their expected adult weight, not their current size — otherwise you'll be buying a new bed in six months.

Cat Bed Size Chart, By Weight

Use this as a starting point, not gospel. Two cats of the same breed can still be different shapes — always cross-check with your own measurements from above.

Curler, Stretcher, or Hider? Sleep Style Matters as Much as Size

Before you buy, watch your cat sleep for a day or two. The size chart tells you a range — their sleep style tells you which end of it to lean toward, and which shape.

• Curlers tuck into a tight ball. They'll usually be happiest at the smaller end of their size range, in a rounded or enclosed bed.
• Stretchers sprawl out fully. Size up, and look for a flatter, more open shape.
• Hiders actively seek out covered, den-like spots. Even if they're a big cat, an enclosed bed with a smaller footprint often gets used more than an open bed with a bigger one.

This is also why "biggest bed = happiest cat" doesn't hold up. A large, open bed on a hider is often the exact bed that ends up ignored.

Multiple Cats, One Bed? The Honest Answer

If your cats are bonded and already sleep pressed together, a larger shared bed can work — size up to the next tier above what either cat needs alone.

If they're not that close, one big bed usually doesn't solve anything. You'll likely see better results (and less territorial tension) from two correctly-sized beds in two separate spots, rather than one oversized bed you're hoping they'll share.

Signs You Got the Size Wrong

• The bed is untouched after the first week or two
• Your cat sleeps curled at the very edge, or half-hanging off
• They've picked a box, bag, or basket over the bed you bought them
• They use it occasionally, but never for long, uninterrupted naps

If more than one of these sounds familiar, it's worth re-measuring rather than assuming your cat "just doesn't like beds."

Our Take

We built our 2-in-1 Cat Tunnel Bed after running into exactly this problem with our own cat, Kiko — a bed that looked right on paper but got ignored because it didn't match how she actually sleeps. The tunnel-plus-bed format exists because most cats aren't purely "curlers" or purely "hiders" — they want the option of both, depending on the day. If you're still figuring out what your cat prefers, that flexibility is worth considering before committing to one fixed shape.

FAQs

What's a standard cat bed size? There isn't a single standard — it depends on your cat's weight and sleep style. As a general anchor, most adult domestic cats (8–12 lbs) do well with a bed in the 18–22 inch range, but always measure your own cat rather than relying on "standard."

Should I size up or down if I'm unsure? Lean slightly smaller if your cat is a curler or hider, slightly larger if they're a stretcher. A bed that's a little too big is generally a safer mistake than one that's too small — but "too big" can still mean your cat skips it in favor of somewhere more enclosed.

Do kittens need a kitten-sized bed? Only temporarily. Kittens grow fast, so it's usually more practical to buy for their expected adult size rather than replacing the bed every few months.

Why won't my cat use the bed I bought them? Size mismatch is the most common cause, followed by placement (cats often prefer beds in quiet, slightly elevated, or partially enclosed spots rather than the middle of a busy room). Check both before assuming your cat just doesn't like beds.

What size bed does a Maine Coon need? Maine Coons and other large breeds typically need a bed in the 26–30+ inch range (extra large tier), given their size can range from 13–25+ lbs depending on the individual cat.

Can two cats share one bed? Only reliably if they're already bonded and choose to sleep together. For cats that aren't closely bonded, two appropriately-sized beds in separate spots almost always works better than one large shared bed.

Related Reading

• How to Train Your Cat to Use a Bed: A Step-by-Step Guide That Actually Works
• Shop the 2-in-1 Cat Tunnel Bed →