Why this product
The Casper Dog Bed Medium is the same product as the Casper Dog Bed Large in a smaller footprint, and the case for it is essentially the same: clean rectangular profile, pressure-relief foam stack, microfiber cover that looks more like furniture than typical dog textile. The Medium sells at $129 against the Large’s $169, which is a meaningful price difference, but only if you have a dog that genuinely fits the Medium’s 33 x 27 inch footprint.
For this review, we built our analysis from Casper’s published specs, owner photos and reviews on the current Amazon listing, and side-by-side reasoning against PetFusion’s medium-size equivalent. Casper did not provide a sample, and no editorial relationship exists with the brand. Where we cite a number, it is from Casper’s product page or aggregated owner reports.
The 4.5 owner rating across roughly 7,400 reviews mirrors the Large’s rating, which is what we would expect from the same architecture in a different size. The decision between Medium and Large is almost entirely about your dog’s sleeping length, not about quality.
What Casper claims (specs)
Casper publishes the same pressure-relief memory foam top layer over a denser support base used in the Large, scaled to a 33 x 27 x 6 inch footprint. The cover is the same microfiber blend with a non-slip woven panel underneath. Casper rates the cover for cold-water machine wash with tumble dry low.
The Medium has no bolster, no raised sides, and no waterproof liner, which is consistent with the Large. Casper publishes a weight guideline of approximately 30 to 60 pounds for the Medium, though the more important dimension is sleeping length: a dog that fully stretches longer than 33 inches will hang off the Medium.
The cover comes in graphite, grey, and sand. The non-slip base panel grips hardwood and tile floors. There is no version of the Casper Medium with a waterproof liner; that feature is not part of Casper’s product line.
Who should buy
Buy the Casper Medium if you have a dog in the 30 to 60 pound range that sleeps stretched out or partially stretched (typical sleeping length 24 to 30 inches), if aesthetics matter for where the bed lives, and if your dog is past the accident-prone phase. Spaniels, Beagles, smaller Border Collies, and similar-sized dogs are the natural fit.
Skip this bed if your dog leans against a side while sleeping (no bolster), if your dog is over 60 pounds (it will be undersized), if your dog has frequent accidents (no waterproof liner), or if your dog is under 20 pounds and prefers to nest (the low rectangular profile gives nesters nothing to dig into).
For accident-prone households at the medium size, the PetFusion Ultimate Medium at $109 includes a water-resistant liner and is a more practical alternative.
Right-sizing the bed
The most common sizing mistake with this product line is buying Medium for a dog that fits Large. Casper’s published 30 to 60 pound range is a guideline, not a sleeping-length spec. Measure your dog from nose to base of tail when fully relaxed (not stretched). If that measurement exceeds 30 inches, the Medium will be tight and the Large is the right call.
The reverse mistake (buying Large for a 35-pound dog) is less consequential but does waste room space. For dogs that consistently sleep curled, the Medium is enough.
Foam quality and feel
The pressure-relief foam stack is what justifies the Casper price premium against equivalent-size budget memory foam beds. The top layer compresses to relieve pressure at shoulder and hip contact points; the support base prevents the dog from sinking through. For medium dogs that sleep on their side, the difference compared with single-layer foam beds is noticeable in the first 30 days of use.
What does not differ from the Large is the cover. The same microfiber blend pills at contact zones over 12 to 18 months. The same line about cover aging while foam holds applies here.
Same gap as the Large: no liner
The Casper Medium ships without a waterproof liner. At $129, with PetFusion’s medium-size Ultimate at $109 including a liner, this is the same trade-off as the Large. For accident-prone dogs, that is the swing factor.
For more on how we evaluate dog beds and pet products, see our methodology page.
Casper Dog Bed (Medium) vs. the competition
| Product | Our rating | Footprint | Foam | Liner | Price | Verdict |
|---|---|---|---|---|---|---|
| Casper Dog Bed (Medium) | ★★★★★ 4.5 | 33 x 27 in | Pressure-relief stack | None | $129 | Top Pick Medium Dogs |
| Casper Dog Bed (Large) | ★★★★★ 4.5 | 45 x 35 in | Pressure-relief stack | None | $169 | Top Pick Premium |
| PetFusion Ultimate (Medium) | ★★★★★ 4.6 | 31 x 25 in | 4 in solid memory | Waterproof | $109 | Editor's Choice |
| Furhaven Memory Foam (Medium) | ★★★★☆ 4.4 | 30 x 20 in | Egg-crate memory | None | $59 | Best Budget |
Full specifications
| Foam construction | Pressure-relief memory foam over support base |
| Top cover | Microfiber, durable woven blend |
| Base | Non-slip woven panel |
| Bolster style | Low-profile rectangular, no raised sides |
| Medium dimensions | 33 x 27 x 6 inches |
| Cover removal | Full-perimeter zipper |
| Wash instructions | Cover machine wash cold, tumble dry low |
| Weight rating (Medium) | Designed for dogs roughly 30 to 60 lbs |
| Available colors | Graphite, grey, sand |
| Warranty | 1-year limited |
Should you buy the Casper Dog Bed (Medium)?
The Casper Dog Bed Medium is the same architecture as the Large with a smaller footprint and a $40 lower price. For medium dogs in the 30 to 60 pound range that sleep stretched out, this is the bed to consider when aesthetics matter as much as orthopedic support.
Frequently asked questions
Is the Casper Medium the right size for a 50-pound dog?+
Yes. The Medium measures 33 x 27 inches and accommodates a 50-pound dog sleeping curled or partially stretched. For dogs that fully extend across the bed (some Spaniels and small Labradors do), the Casper Large at 45 x 35 inches is the better fit.
What is the difference between the Casper Medium and Casper Large?+
The Medium is 33 x 27 inches, the Large is 45 x 35 inches. The foam stack and cover material are identical. The Large costs $40 more and adds approximately 10 inches in length and 8 inches in width. Choose the Medium for dogs under 60 pounds and the Large for dogs in the 60 to 90 pound range.
Does the Casper Medium hold up for two small dogs?+
It depends on the dogs. Two dogs under 25 pounds each can share the Medium comfortably if they sleep curled. Two stretched-out dogs will not fit. For multi-dog households, the Casper Large or PetFusion Ultimate XL are better-sized options.
Is the cover removable?+
Yes. The cover unzips fully via a perimeter zipper and Casper rates it for cold-water machine wash with tumble dry low. The cover material is the same microfiber blend as the Large; it pills at contact zones over time but does not tear.
Does the foam break down faster in the smaller size?+
No. The foam construction is identical to the Large; only the dimensions differ. Owner photos of the Medium at 18 to 24 months show the same long-term shape retention as the Large. What ages first on both sizes is the cover, not the foam.
📅 Update log
- May 9, 2026Initial review published with comparison to Casper Large and PetFusion Medium.
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