Sometimes,but not always.
the southern ocean during their annual migration for feeding.
Many whale species pass through NC waters during migration..
Yes. Sperm whales sleep vertically with head down.
Humpback whales are the greatest whales and travel the farthest in its migration Humpback whales are very big so they can basically travel in a sort of Wolf Packs.
they swim when they sleep
In water
Yes.
Killer Whales sleep by floating on the surface.
In the summer fin whales migrate to cold waters and in the winter fin whales migrate to warm waters.
It has layers of blubber which is kept until the end of thier migration.
they sleep and like the tropical water
At the bottom of the ocean!