Smart panels help give sound night’s sleep in hospital
Tom Knowles, Technology CorrespondentFriday June 25 2021, 12.01am BST, The Times

Anyone who has spent time in a hospital will know that it is rarely a quiet place, with beeping machines, ringing phones, alarms, televisions and conversations all disrupting patients’ peace.
Now, however, scientists may have found the solution with an extremely lightweight panel that cancels out almost all ambient noise and can be placed round a patient’s bed.
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The panel is made of a “metamaterial” that can let in air and light while blocking out the same amount of sound as putting up a two-inch thick block of plywood that weighs four to six times as much.
The panels are being tested in the intensive care wards of St George’s Hospital in south London and the Royal Sussex County Hospital in Brighton. The product was