Juliette Gélébart

1 Introduction Sleep is a biologically active state essential for the memory regulation across multiple levels of brain function (Diekelmann and Born 2010; Tononi and Cirelli 2003). By coordinating synaptic plasticity, endocrine balance, and large-scale network dynamics, sleep supports the encoding, consolidation, and stabilisation of information within hippocampus-dependent systems underlying both declarative and procedural memory (Dudai 2004; King et al. 2017; Albouy et al. 2008).