a slumber cap的用法和样例：
- I could not have been long in bed when I fell into a slumber.
- Instead of studying the whole night through, last night I had a slumber party with my friends, Ramona, Priscilla and Phyllis.
- Use: Puts the imbiber in a slumber where they face and defeat their darkest fears.
- In lieu of carrying an umbrella, I wore a waterproof coat and cap.