Alexander so esteemed his painter that he presented Campaspe to Apelles as a reward for the portrait. The tale of Alexander and Apelles, a favorite of Renaissance and Baroque painters, celebrates the power and nobility of painting. Giovanni Battista Tiepolo painted this episode at least three times.
However even 18 hours is not considered abnormal for a Chihuahua. This includes naps.There are 2 types of sleeping. One is a lighter sleep (called slow wave) and the other is the deeper sleep (known as REM-Rapid Eye Movement). Dogs, just like humans do have these 2 different types of sleep.
On average, dogs sleep about 14 hours a day (though large breeds may sleep more), while cats spend 15 to 20 hours snoozing (yes, be jealous). Dogs tend to nap during the day and sleep through the night, while cats get most of their shuteye during daytime hours and are most active after dark.