How to express your thanks in numerous different languages, and how to reply when someone thanks you.
Report Abuse. Namaste Ramesh. Lions sleep 20 hours every day. Male lions sleep up to 20 hours per day (with one eye open so to speak.) While the females are the hunters the male lions don't and their job is to protect the pride (their harem so to speak).
For the deepest sleep, walruses will either hook their tusks onto a stable piece of ice or move to land. Walruses can sleep up to 19 hours at one time. Unlike most animals, walruses do not need to sleep every day, and they can swim without stopping to sleep for more than three days. Giraffes. Giraffes need less sleep than any other mammal. According to the Smithsonian publication, Zoogoer, giraffes sleep for five minutes at a time, adding up to an average of 30 minutes per day.