To determine the ideal length, measure your dog from the tip of the nose to the base of the tail when he’s standing upright. Add another 15 to 30 centimetres. You should choose a bed of which the internal length is at least this long. To give you an idea: for small dogs a diameter of at least 40 cm is recommended, for medium-sized dogs at least 70 cm and for large dogs a least 90 cm. Please note: on our website we always mention the external dimensions.