Choosing the correct dog bed size ensures your dog can lie down naturally without restriction. A bed that is too small reduces comfort and may not be used consistently. A correctly sized bed provides stable support and allows natural positioning.
This guide shows how to select the correct size based on a single measurement.
Step 1 - Measure Your Dog
Measure your dog from the tip of the nose to the base of the tail.
Use a soft tape measure and measure your dog while it is standing or lying fully stretched. Do not include the tail.
Step 2 - Select the Model First
All Snoozeluxe orthopaedic beds use the same mattress dimensions per size - but the amount of usable space varies depending on the number of headrests. Choose your preferred model before looking up the size table.
| Model | Headrests | Best for |
|---|---|---|
| Flat Bed | None | Dogs that move around and reposition frequently |
| Lounge Bed | 1 | Dogs that like to rest their head on a raised edge |
| Corner Bed | 2 | Dogs that prefer leaning into a corner while sleeping |
| Sofa Bed | 3 | Dogs that prefer clearly defined boundaries on three sides |
Model selection affects how much usable space is available - sizing is already adjusted accordingly. No additional calculation is required.
Step 3 - Find Your Size
Choose the size where the maximum dog length is greater than your measurement. All values below already include the required margin, bed structure and usable mattress space.
Flat Bed - Maximum Usable Space
No headrests. Provides the largest free surface of all models.
| Size | Length (cm) | Width (cm) | Thickness (cm) | Max Dog Length (cm) |
|---|---|---|---|---|
| S | 79 | 55 | 10 | < 50 |
| M | 95 | 67 | 10 | < 66 |
| L | 111 | 79 | 15 | < 82 |
| XL | 130 | 94 | 15 | < 101 |
| XXL | 143 | 107 | 15 | < 114 |
Lounge Bed - 1 Headrest
Light structural guidance along one side.
| Size | Length (cm) | Width (cm) | Thickness (cm) | Max Dog Length (cm) |
|---|---|---|---|---|
| S | 79 | 55 | 10 | < 48 |
| M | 95 | 67 | 10 | < 62 |
| L | 111 | 79 | 15 | < 76 |
| XL | 130 | 94 | 15 | < 93 |
| XXL | 143 | 107 | 15 | < 106 |
Corner Bed - 2 Headrests
Increased containment on two sides. Same usable length as the Lounge Bed.
| Size | Length (cm) | Width (cm) | Thickness (cm) | Max Dog Length (cm) |
|---|---|---|---|---|
| S | 79 | 55 | 10 | < 48 |
| M | 95 | 67 | 10 | < 62 |
| L | 111 | 79 | 15 | < 76 |
| XL | 130 | 94 | 15 | < 93 |
| XXL | 143 | 107 | 15 | < 106 |
Sofa Bed - 3 Headrests
Highest containment. Headrests on three sides reduce the free surface slightly compared to other models.
| Size | Length (cm) | Width (cm) | Thickness (cm) | Max Dog Length (cm) |
|---|---|---|---|---|
| S | 79 | 55 | 10 | < 46 |
| M | 95 | 67 | 10 | < 58 |
| L | 111 | 79 | 15 | < 70 |
| XL | 130 | 94 | 15 | < 85 |
| XXL | 143 | 107 | 15 | < 98 |
Crate Beds - Different Sizing Logic
Crate beds are designed for enclosed environments and follow a different sizing approach. They are thinner and dimensionally smaller than orthopaedic beds, optimised to fit inside standard dog crates while preserving headroom.
When Used Inside a Crate
Do not use your dog's length as the reference. Instead:
- Measure the internal length and width of the crate
- Select a crate bed that fits within those dimensions
The crate defines the available space.
When Used Outside a Crate
If the crate bed is used outside a crate, use your dog's length to select the correct size.
| Size | Length (cm) | Width (cm) | Thickness (cm) | Max Dog Length (cm) |
|---|---|---|---|---|
| S | 60 | 42 | 5 | < 31 |
| M | 75 | 45 | 5 | < 46 |
| L | 89 | 55 | 7 | < 60 |
| XL | 105 | 69 | 7 | < 76 |
| XXL | 119 | 74 | 7 | < 90 |
Note: crate beds provide less usable surface than orthopaedic beds. If sufficient space is available, an orthopaedic bed offers more freedom of movement.
When Between Two Sizes
If your dog's measurement falls between two sizes, always choose the larger size. This is especially important for dogs that stretch fully, larger breeds and senior dogs. Additional space improves comfort, freedom of movement and ease of repositioning.
Before You Order - Check Available Space
Larger orthopaedic beds require sufficient floor space. Before ordering, verify that the bed fits the intended room, including surrounding clearance and access paths such as doorways and stairs.
Common Sizing Mistakes
Sizing by breed alone
Breed is not a reliable sizing indicator. Dogs of the same breed can differ significantly in body length, proportions and sleeping posture. Always measure your dog.
Choosing a bed that is too small
Insufficient space restricts natural movement and reduces the likelihood the bed will be used consistently. When in doubt, go larger.
Ignoring the bed model
The same size in different models provides different amounts of usable space. Select your model before choosing a size - the tables above are model-specific for this reason.
Forgetting to check room dimensions
A bed that fits your dog may not fit your room. Confirm that both requirements are met before ordering.
Frequently Asked Questions
Why is the recommended maximum dog length smaller than the bed dimensions?
Dogs do not position themselves precisely at the centre of a bed. Additional space is needed to allow natural movement when lying down, to prevent limbs extending beyond the mattress edge and to maintain full-body support across different resting positions. The maximum dog length values already include all required margin - no additional calculation is needed.
Why do different bed models have different maximum dog lengths?
Bed structure influences how a dog positions itself during rest. Flat beds provide no positional guidance, so more free surface is needed. Beds with headrests create natural containment, reducing the effective space required. The size tables on this page already account for these differences per model.
Do I need to add extra margin myself?
No. All values in the tables above already include the required margin, bed structure and usable mattress space. Simply match your dog's measured length to the correct column.
Can I size by breed?
Breed-based sizing is a useful starting point, but it is not precise. Two dogs of the same breed can require different sizes depending on body length, build and sleeping behaviour. Correct sizing should always be based on your dog's actual measurement. For a general reference by breed, see the Dog Beds by Breed page.
Why are crate beds smaller and thinner?
Crate beds are designed for enclosed environments. Their reduced thickness preserves headroom inside the crate and allows the dog to sit upright. When used outside a crate, they provide less usable surface and less elevation than a full orthopaedic bed.
How were these sizes determined?
Sizes are based on measured dog body length, model-specific margin requirements and usable mattress surface per configuration. This ensures consistent support across all Snoozeluxe bed types and sizes.
Not Sure Where to Start?
- Browse beds by size → Dog Beds by Size
- Find your size by breed → Dog Beds by Breed
- Learn how to choose the right model → How to Choose a Dog Bed
- Explore all beds → Snoozeluxe Orthopaedic Dog Beds