A nose plug that restricts air flow during sleep could be a radical new cure for snoring.
The plug contains a special valve that allows air to be inhaled as normal through the nostrils, but it then snaps shut to let only some of the air out.
The remaining air is diverted into the throat and upper airways, where it puts pressure on the muscles in the lining of the throat and respiratory tract to keep the airways open during sleep, preventing snoring.