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The bed was not specifically invented by any person in particular, but instead it was just a phenomenon that people adopted. Beds initially consisted of leaves and grass. Then they eventually raised the structure in order to keep out pests and dirt. http://www.innovateus.net/invention/bed
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The first coil spring bed frame is patented in order to make the bed more comfortable and sturdy.
http://bettersleep.org/mattresses-and-more/history-of-the-mattress -
Heinrich Westphal was the first person to patent a waterbed mattress. This invention eventually put him in poverty because it never caught on.
https://www.mattressmart.ca/History-of-the-Bed -
The innerspring mattress in patented and becomes widely used. These beds are used by majority of people because they affordable and comfortable
https://www.mattressmart.ca/History-of-the-Bed -
Foam rubber mattresses are invented along with vinyl which becomes very popular because it has many uses.
https://www.mattressmart.ca/History-of-the-Bed -
The first air mattress is introduced and becomes very widely is used.
http://bettersleep.org/mattresses-and-more/history-of-the-mattress
