Sleep apnea can be a big problem for people affected by the disorder, but there is help from Japan on the way. A team of researchers at Waseda University in Tokyo have developed a robot pillow that monitors the sleep of patients and helps them by touching the face or neck whenever it detects irregularities in the sleep cycle.The pillow, which is dubbed Jukusui-kun, is shaped like a teddy bear. In Japan alone, about 2 million people are estimated to suffer from sleep apnea (out of a population of 128 million), meaning the target group is quite large.