The animal that sleeps for 7 hours is captive elephants.
Captive elephants are known to sleep for around 7 hours a day, which is unlike the wild elephants who sleep around 2 hours in short bursts due to survival needs.
Other animals like opossums sleep around 6 hours and some types of insects or deep hibernators can even sleep for months or years.
Although 7 hours of sleep is mainly done by elephants that are in captivity.
Captive elephants can get more sleep than wild elephants as they don't have to worry about survival like wild elephants do.
Captive elephants also tend to sleep for the 7 hours a day in shorter and standing naps.
Opossums sleep roughly 6 hours but also stay busy when awake.
Animals that sleep even longer are Koalas which sleep up to 22 hours a day.
Sloths sleep around 20 hours a day.
Brown bats sleep around 20 hours a day.
And some animals that sleep less are horses who sleep around 3 hours.
And Great Frigatebirds sleep as little as 40 minutes and in tiny naps.