Each piece of baggage in excess of the free baggage allowance specified above that is not in excess of 62 inches (L+W+H) and 50 lbs. or less will be accepted for a charge of $75.00 per item one-way.
Best Answer: The standard is 10 to 12 hours a night. This is normally what birds sleep...seasonally a little more or less, depending on daylight hours. Most birds sleep when it is dark. In the wild, dark means danger.
Dolphins have solved that by letting one half of their brain sleep at a time. Dolphins sleep about 8 hours a day in this fashion. REM (Rapid Eye Movement) sleep, usually associated with dreaming has been recorded only very rarely. Some scientists claim dolphins do not have REM sleep at all.