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/ 22 January 2007

Self-improvement while you sleep

"While you sleep!" is a catchphrase on hundreds of internet sites selling products that are supposed to help you, for example, "overcome fear of clowns" and "master the bagpipes". "Sleep learning" comes out of the "self-empowerment" movement, dating back to the 1930s. Instructions on how to do all manner of things while having a snooze used to be contained in cassettes kept in the section of the bookshop next to macrobiotic cookery books.