Warning device reminds NICU visitors to shush

When babies are born too early, they need a highly controlled environment to help them rest so that their bodies can grow and develop. Because their rest and sleep is so vitally important to them, NICU's across the country are learning new ways to keep their experience as womb-like as possible.

One dad saw that need and set about inventing a system to help. The Sonicu measures the level of sound in a room and uses a stoplight-type system to warn parents and doctors that they are making too much noise. The lights start at green, move to yellow, then flash read when decibel levels climb too high. The system can even dim lights in the room, kind of like a group warning.

So far, the systems have sold only in Indiana, but because doctors say there's nothing else like it on the market, hospitals nationwide may soon be seeking them out.