77,000 years ago, mankind knew how to create a good night's sleep, as evidenced by the fossils of leaves and stems found in Sibudu Cave, South Africa.
Did you know, bed is not merely your paradise. In fact, there are many species of creatures that are sleeping with you every day. More frightening, when you are enjoying
A farmer in Jiangxi Province, China created a bed that can rotate 360 degrees, helping his wife
A Swiss entrepreneur invented the smart bed that would help bedridden patients not to suffer from ulcers.