Abstract
A growing body of literature from recent years holds that sleep plays a crucial role in the development of learning. Evidence of sleep-dependent learning has now been demonstrated across a wide variety of mnemonic domain, including both declarative and non-declarative procedural or conditioned memories. The mechanisms of sleep-dependent memory enhancement involve particular cerebral activities associated with neuroplasticity during sleep. However, there remains controversy as to whether every mnemonic function classified into various domains benefits similarly from sleep or not. This work attempts to set the scene for a much more profound insight into mnemonic characteristics, including considerations for emotional modification.