It is important that you measure the length and height of your dog and match to the diameter of the bed. This will ensure your dog has enough room and can rest his/her head on the rim comfortably.

Dimensions:

S - Pets up to 10 lbs
M - Pets up to 15 lbs
L - Pets up to 25 lbs
XL - Pets up to 50 lbs
XXL - Pets up to 120 lbs