Because in ancient time the entire house was a bed.
Why do you sleep on beds? To avoid sleeping directly on the floor, which is dirty, humid, crawling with all kinds of insects.
But in ancient times in Japan the houses were built over a platform which protected the house from dirt, humidity and insects. The entire house was a bed, so to speak.
That is why to this day Japanese people remove their shoes before entering the house.
Ususally it is just chairs, Japanese also kneel on mats.
the are very cramped and small. there are no chairs and very low tables. they all sit on the floor on tatami mats and sleep on things called futons that are basically thick blankets on the floor. they are all square or perfectly rectangular rooms there is more to it but that is the basics hope it what you looking for :D
They don't sit on the floor, the Japanese do.
On the floor.
Sting rays do sleep. They just sit on the sandy floor of the ocean, motionless.
Although sharks may graze on the bottom, they never actually sit on the ocean floor. Sharks have to constantly keep swimming, even in their sleep or else they will die.
Chinese is not known for sitting on the floor when they eat. That is more of a Japanese custom. Chinese tend to sit on small bar stools that are about four inches tall making them look like they may be sitting on the floor.
Sit 'n Sleep was created in 1978.
The motto of Sit 'n Sleep is 'Sit 'n Sleep will beat anyone's advertised price, or your mattress is FREEEEEEEEEEEEEE!!!'.
coop Another answer It is called a roost. The roost is usually inside the chicken coop and is above floor level, such as a bar or branch that they sit on to sleep and be safe from predators.
The Aztec's houses were made of adobe. Their furniture was very simple, as much as reed mats so sleep on or sit and low tables. The huts were usually one room, very simple.
Unless there is a mod to change this, you cannot make your sim just sit on the floor. The "Hang Out" option will sit them on the floor but that is two sims "hanging out" and talking on the floor...they do not just idly sit there.