Sleep after learning aids the consolidation of factual knowledge, but not relearning-V44I3 Sleep after learning aids the consolidation of factual knowledge, but not relearning-V44I3 Download Sleep characteristics, cognitive performance, and gray matter volume: findings from the BiDirect Study-V44I3 Multi-ethnic GWAS and meta-analysis of sleep quality identify MPP6 as a novel gene that functions in sleep center neurons-V44I3