Bitterly cold

• Millions brace for cold as Florida could see record highs: forecast - The highest temperature in the U.S. Jan. 22 was in Ochopee, Florida. It may not be the last in the coming days.
• What sleeping in a cold room really does to your health - There are benefits and downsides to snoozing in a chilly room. We asked to experts the pros and cons as UK weather. turns icy.