Why People in Japan Sleep on the Floor?​

Tatami mats are light and breathable, and their position on the floor allows cool air to circulate (warm air rises, cool air settles to the floor). In hot weather, the choice is there to forgo the futon and sleep just on the cool tatami. Many experts believe that sleeping on a tatami mat is good for the spine

In the summer months, Japan can be stiflingly hot – especially in urban spaces. Thick, raised mattresses and all their associated bedding are notorious for retaining heat – leading to a sweaty and uncomfortable night’s kip. Tatami mats are light and breathable, and their position on the floor allows cool air to circulate (warm air rises, cool air settles to the floor). In hot weather, the choice is there to forgo the futon and sleep just on the cool tatami.

Many experts believe that sleeping on a tatami mat is good for the spine. This is because the tatami mat encourages the spine to take a more neutral position, and allows the body to move around during the sleep cycle. When sleeping on a mattress, the cushion tends to sink the spine into a curved position for the night – making the body stiff and achy upon waking up in the morning. You can actually get yourself your very own tatami mat here if you wish to try it out.

answer; i believe the answer is 80%, plz check first good luck;

you probably know the answer. stop asking stupid questions and making me waste my time. j.k. ; )   b.t.w. what are three ratios equivalent to 5 : 11? thx