What is sweet dreams vs good night?

Sweet dreams and good night are both phrases commonly used to wish someone a peaceful and restful sleep. However, there is a slight difference in their meanings.

"Sweet dreams" is a phrase used to convey the hope that the person will have pleasant and positive dreams during their sleep. It is often used in a more affectionate or romantic context, such as saying it to a loved one before going to bed.

"Good night" is a more general phrase used to wish someone a peaceful and restful sleep. It does not necessarily imply anything about the quality or content of their dreams.

Overall, both phrases are often used interchangeably and both convey positive wishes for a good night's rest.