Best Friends by Sheri Donut Shag Dog Bed

Walmart

Round shape matches the description exactly, Light blue color matches exactly, Plush/shag material matches 'plush' description, Donut style provides a bolster, matching 'bolster' feature, Clearly identified as a dog bed, Retailer (Walmart) is a high-priority source

Bedsure Round Bolster Anti-Slip Puppy & Kitten Bed

Chewy.com

Round shape matches, Plush material matches, Bolster design matches, Light blue/grey color is a good match for 'light blue'

NonoPets Round Faux Fur Corduroy Fleece Anti Slip Bottom Donut Dog & Cat Bed

Chewy.com

Round shape matches, Light blue color matches, Plush (ribbed faux fur) material matches, Donut style provides a bolster