Recent research suggests that sleep is unnecessary for human beings. Our waking consciousness could, therefore, be extended so that we could do without sleep altogether. Audrey McAllen, however,... This description may be from another edition of this product.
ThriftBooks sells millions of used books at the lowest everyday prices. We personally assess every book's quality and offer rare, out-of-print treasures. We deliver the joy of reading in recyclable packaging with free standard shipping on US orders over $15. ThriftBooks.com. Read more. Spend less.