Top 10 in Wearable Wellness These companies put useful technology in the palm of your hand -- or on your finger or in a dog collar or in a sock for infants...

Companies that rethink wearables have re-envisioned how we live, work, play -- and in some cases -- sleep.

1. Thinx makes tampons nearly obsolete with its specially-designed liquid-absorbing line of underwear that took more than three years to develop.

2. Kokoon headphones use brainwave sensors to monitor when users fall into sleep and broadcasts white noise to protect that hard-earned rest.