Más información sobre el libro
Blue Marble has combined a concise guidebook of essential knowledge to improve sleep (written by a leading expert from Harvard) with a CD of relaxing music. Why is there a CD in a sleep book? Recent studies have shown that there is an important connection between music, relaxation and sleep.
Compra de libros
Deep sleep 101 - Music and guidebook for a good night's sleep, Gregg D. Jacobs
- Idioma
- Publicado en
- 2001
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- (Tapa dura)
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