When it comes to sleep gadgets, the ideas are moving faster than the research

This is the second year that CES has featured a section dedicated to sleep tech and the promise that getting enough sleep will make sure all’s right with your world. Sleep trackers, "three-in-one" kits, and a variety of headsets all dangle the possibility of better rest. But while the tracking technology might be getting more accurate, most scientists agree that more data is not always better.

This is the second year that CES has had a section dedicated to sleep tech and the gadgets that promise to make everything right with the world if you just get enough sleep. Sleep trackers, “three-in-one” kits, and a variety of headsets all dangle the possibility of better rest. But while the tracking technology might be getting more accurate, most scientists agree that more data is not always better. Sleep is important for quality of life, and sleep deprivation is associated with health risk...