Stephane Granzotto a French photographer and a filmmaker had come across something interesting while he was looking at sperm whales in the Mediterranean sea for his photo book about creatures, it is the sleeping pattern of these whales.
These animals sleep deep under the sea in a vertical position and it appears as if they are standing. Until a 2008 study disclosed it, none knew how they slept and until this photographer none had seen or captured this.More info & Photo courtesy: Stephane Granzotto/National Geographic
National Geographic had stated that they take deep breaths and sleep about 45 feet deep in the sea in this position. And they sleep in pods with 5-6 whales and sleep for about two hours a time in between the breaths.
It was in a study that the whales in Chile were in deep sleep until a ship while it’s engine was off had knocked them accidentally.