Tired of tents? This could be the camping sleep solution your inner child (or hippy) has been waiting for.
Psychologists are looking for volunteers who want to learn how to control the direction of their dreams during sleep
Madagascan tenrecs are the first known tropical mammals to hibernate for long stretches without waking
Without the luxury of fluffy pillows and a warm bed, animals retreat to the land of Nod in some extraordinary ways.