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.
Hours and Activity. There are no hard and fast guidelines for how much sleep a puppy should get, but it's generally a little more than a full-grown dog. For example, an adult dog who sleeps 12 to 16 hours each day would probably sleep closer to 15 or 20 hours per day as a 12-week-old puppy. While breed, age and size are all influential factors, so is activity.