Why do we need sleep? /

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by Asimov, Isaac,
[ 01. English Non Fiction ] Authors: Dierks, Carrie. Series: Ask Isaac Asimov Published by : G. Stevens Pub., (Milwaukee :) Physical details: 24 p. : col. ill. ; 27 cm. Subject(s): Sleep --Juvenile literature. | Sleep. Year : 1993 01. English Non Fiction Item type : 01. English Non Fiction

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Includes bibliographical references (p. 23) and index.

A brief discussion of sleep, why we need it, what happens when we sleep, and sleep disorders.