How to get a good night's sleep – and why it's thanks to the space programme

When you can’t sleep, the night ahead can feel like a long and difficult journey. For sleep expert Kate Faithfull-Williams, the secret lay in a mattress developed by space scientistsThe formula for peaceful sleep is so closely guarded that only 20 people in the world know it. This groundbreaking development was pioneered by Nasa in the 1970s, as space scientists developed a viscoelastic foam to support and cushion astronauts during enormous G-forces at lift off. Designed to respond to ever