How to Choose the Right Pet Bed Size for Your Cat or Small Dog

Choosing the right pet bed size is important for your pet's comfort. A bed that's too small may restrict movement, while one that's unnecessarily large may not suit a pet that prefers curling up in a sheltered space.

To choose the right pet bed size, measure your pet in its usual sleeping position, consider whether it stretches out or curls up, and compare those measurements with the manufacturer's internal bed dimensions. For enclosed beds, check the entrance opening as well as the sleeping area.

Whether you're shopping for a cat, a puppy, or a small dog, this guide explains how to measure your pet, compare bed dimensions, and choose a suitable resting space.

Why Does Pet Bed Size Matter?

Pets spend a significant amount of time resting, so their sleeping space should allow them to settle comfortably.

The right size helps your pet lie down, change positions, and stretch without being unnecessarily restricted.

Size also matters when choosing between different styles. An enclosed pet house bed has a different usable space from an open donut bed, even when their external measurements appear similar.

Before buying a new bed, consider three things:

• Your pet's body size and sleeping position.

• The bed's internal dimensions and entrance size.

• The space available in your home.

These details can help you make a more informed purchase rather than relying on product photographs alone.

How Do You Measure Your Pet for a Bed?

The simplest approach is to measure your pet and compare the results with the manufacturer's sizing guide.

Step 1: Measure Your Pet's Body Length

Have your dog stand comfortably and measure from the tip of its nose to the base of its tail.

For a cat, measure its body length and observe how much space it occupies when resting in its usual position.

Use a flexible measuring tape if possible, and avoid pulling or stretching your pet into an uncomfortable position.

Step 2: Observe Your Pet's Sleeping Position

Does your pet curl into a ball, stretch out fully, or alternate between the two?

A pet that likes stretching out may need a longer sleeping surface than one that usually curls up.

However, don't choose a bed based only on your pet's smallest curled-up position. Allow enough room for comfortable movement and changes in sleeping position.

Step 3: Measure the Available Space in Your Home

Think about where you plan to put the bed.

Measure the available floor space and check whether the bed's external dimensions will fit comfortably.

For an enclosed bed, leave enough room around the entrance so your pet can enter and leave easily.

Step 4: Compare Your Measurements With the Product Size Chart

Product dimensions vary by manufacturer and design.

Some sellers list external dimensions, while others provide internal sleeping measurements. These are not necessarily the same.

Compare your measurements with the manufacturer's size chart and follow its recommendations for adding extra room.

Important: There is no single bed-size formula that works for every product. Always use the size guidance for the specific bed you're considering.

What Size Bed Does a Small Dog Need?

The best bed size for a small dog depends on its body length, weight, sleeping position, and the design of the bed.

For example, a small dog that enjoys stretching out may need a longer bed than a dog of similar weight that sleeps curled up.

Use this simple guide as a starting point.

Your dog's sleeping habits	What to look for
Usually curls up	A bed with enough room to curl comfortably and change position
Frequently stretches out	A longer and wider sleeping surface
Likes sheltered spaces	An enclosed bed with a suitably sized entrance
Changes sleeping positions often	A design that accommodates different positions
Has difficulty stepping into beds	An easy-access design with an appropriate entrance height

These are selection guidelines, not exact size recommendations. Measure your dog and check the dimensions of the specific product before ordering.

What Size Bed Does a Cat Need?

Cats vary considerably in size and sleeping preferences.

Some cats curl into small spaces, while others stretch across cushions or sleep with their legs extended.

When choosing a cat bed, consider the following:

For cats that curl up: A round or oval bed may provide a comfortable space to settle.

For cats that stretch out: Look for a larger open sleeping surface that accommodates their full resting position.

For cats that enjoy covered spaces: Consider an enclosed cat bed with an entrance and interior dimensions suitable for your cat.

For larger cats: Check the actual sleeping area rather than relying on labels such as small, medium, or large.

If you have more than one cat, remember that a bed suitable for one may not suit the other.

Enclosed Pet Bed vs Open Pet Bed: Does Size Differ?

Yes. The bed's design affects how much usable space your pet has.

An enclosed pet bed typically has walls, a roof, or a covered structure. Its external dimensions may therefore be considerably larger than the interior sleeping area.

An open bed, such as a donut bed, provides a more exposed sleeping surface. However, its raised edges also take up space.

Compare the two designs before deciding.

Feature	Enclosed Pet Bed	Open Pet Bed
Main consideration	Internal sleeping area and entrance	Usable sleeping surface
Suitable sleeping habits	May suit pets that enjoy sheltered spaces	May suit pets that like stretching out
Measuring priority	Internal length, width, and entrance opening	Inner sleeping diameter or usable length and width
Space at home	Allow room for the entire structure	Check the bed's overall footprint
Best buying approach	Check both internal and external dimensions	Check the usable sleeping surface and edge height

For either design, the measurements matter more than the product's general size label.

How to Choose the Right Size Enclosed Pet House Bed

If you're considering a covered pet house bed, pay particular attention to its entrance and interior space.

Your pet should be able to enter without squeezing through an opening that's too small.

Inside, there should be sufficient room to turn around, settle down, and change positions comfortably.

Before ordering, check:

• The internal sleeping length and width.

• The entrance height and width.

• The overall height of the structure.

• The recommended pet size, where provided.

• The materials and cleaning instructions.

If the manufacturer provides only external measurements, ask for the internal dimensions before purchasing if they aren't otherwise available.

Is a Foldable Enclosed Pet Bed Worth Considering?

A foldable enclosed bed may be useful if you need a covered resting space that can be stored or moved when necessary.

However, foldability doesn't automatically mean that a bed is the right size for your pet.

Check the dimensions when the bed is assembled, as well as any storage instructions provided by the manufacturer.

At The Pure Paws Hub, you can explore our Foldable Enclosed Pet House Bed and review its available sizes and product specifications before choosing.

Explore the Foldable Enclosed Pet House Bed

How to Choose the Right Size Donut Bed

A donut bed has a rounded shape and raised edges, making the usable sleeping area different from its full external diameter.

For example, a bed advertised with a particular outside diameter may have a smaller interior sleeping area because the raised edges occupy part of that space.

Before buying, check whether the listed diameter refers to the whole bed or the inside sleeping area.

Consider your pet's sleeping position, too. A cat that curls up may enjoy a round bed, while a dog that stretches out may need a larger model or a different shape.

You can compare styles in our Pet Beds & Carriers Collection.

Common Mistakes to Avoid When Buying a Pet Bed

Choosing a pet bed becomes easier when you know what to avoid.

1. Choosing Based Only on Weight

Weight can help you narrow down your options, but it doesn't tell you everything about your pet's body length or sleeping habits.

Use measurements alongside any weight recommendations supplied by the manufacturer.

2. Ignoring Internal Dimensions

A bed may look spacious in a photograph while providing less usable space than expected.

Always check the actual sleeping area, particularly for enclosed designs.

3. Forgetting About the Entrance

An enclosed bed must have an entrance that suits your pet.

Check its dimensions rather than assuming that every entrance will accommodate every small dog or cat.

4. Buying Too Small Because Your Pet Likes Curling Up

Pets may change positions during sleep.

Choose a bed that accommodates comfortable movement rather than measuring only the smallest curled-up position.

5. Ignoring Cleaning Requirements

A bed should be practical for everyday use.

Review the manufacturer's cleaning instructions and consider whether the materials suit your household.

Frequently Asked Questions

How do I know what size pet bed to buy?

Measure your pet, consider its sleeping position, and compare those measurements with the manufacturer's sizing guide. Check the usable sleeping area rather than relying only on the external dimensions.

Should a dog bed be bigger than the dog?

Generally, a dog should have enough space to lie down comfortably, stretch, and change positions. How much additional room is needed depends on the dog's measurements and the bed manufacturer's sizing recommendations.

How do I measure a dog for a bed?

Measure your dog from the tip of its nose to the base of its tail, then compare the measurement with the manufacturer's instructions. Some sizing guides also ask for body height or width.

How do I measure a cat for a bed?

Measure your cat's body and observe the space it occupies when resting. Compare those measurements with the bed's internal dimensions and consider whether your cat prefers curling up or stretching out.

What size enclosed bed does a small dog need?

Choose an enclosed bed with sufficient internal space for your dog to turn around, settle down, and change positions. Check the entrance dimensions and the manufacturer's recommended pet size before ordering.

Are internal and external bed dimensions the same?

No. External dimensions describe the overall size of the bed, while internal dimensions describe the usable space inside it. Walls, cushioning, and raised edges can reduce the available sleeping area.

Should I buy a bigger bed for a growing puppy?

If your puppy is still growing, consider its expected adult size and the manufacturer's sizing guidance. The bed should remain safe and comfortable during use, so reassess the fit as your puppy grows.

Is a round bed or rectangular bed better?

Neither shape is best for every pet. Round beds may suit pets that like curling up, while rectangular beds may provide more room for pets that stretch out. Compare the actual sleeping dimensions before choosing.

Final Thoughts: Choose a Bed That Fits Your Pet

The right pet bed should accommodate your animal's body size, sleeping habits, and everyday needs.

Measure before you buy, compare the usable sleeping area, and pay attention to the entrance dimensions when choosing an enclosed bed.

If you're shopping for a cat or small dog, explore the Pet Beds & Carriers Collection at The Pure Paws Hub to compare different styles and find an option that suits your home.

A little measuring before ordering can help you make a more informed choice for your furry companion.