Encore: How to sleep well and what can get in the way

From muscle paralysis and sleepwalking, to the power of our subconscious, Dr Sutapa Mukherjee takes you into the secret world of sleep.

Dr Sutapa Mukherjee is a sleep specialist fascinated by how the time we spend awake is built on the hours we spend horizontal, and totally withdrawn from the world. 

She trained initially as a respiratory specialist, but moved into sleep research when she realised how little was known about what happens to us when our conscious mind switches off at night. 

Sutapa helps people to overcome sleep disorders, like insomnia, sleepwalking an...