He defines yoga "as nothing more than prolonged sleep".

It has also been discovered that lesions to this part of the brain cause prolonged sleep or may produce coma.

The vast majority of the Viet population fled for their lives, and the former town entered a prolonged sleep.

Jackson was grateful for the prolonged sleep.

In order to keep them alive, Rhodan had been forced to subject the victims to a prolonged deep sleep and feed them intravenously.

He has a practically disease-proof constitution, tremendous energy, and little need for prolonged sleep.

When injected into animal brains, the proteins produce deep prolonged sleep.

This had been done, but I found I had underestimated the time necessary for them to become coherent after prolonged deep sleep.

This almost aroused the Democrats from their prolonged sleep, especially since the President is now blaming them for every disaster from the budget deficit to the recession.

After finally arriving in Paris, he is poisoned by Farighea (whom he had thought was his friend), so that he goes into a prolonged sleep.