These towering Buddhists temples are common in China. It has to be a 7 letter word.

It's for a Crossword Puzzle.

Pagoda

Explanation:

A pagoda is a tiered tower with multiple eaves common to China, Japan, Korea, Vietnam and other parts of Asia. Most pagodas were built to have a religious function, most often Buddhist but sometimes Taoist, and were often located in or near viharas. The pagoda traces its origins to the stupa of ancient India.

a. theta waves. this is because the person is in a light sleep which means the brain waves would show these kind of waves.