What is is saying sweet dreams flirting?

Whether saying "sweet dreams" is flirting depends heavily on the context and the relationship between the individuals involved. It can be a simple, friendly way to wish someone a good night, or it can carry a flirty undertone. Here's a breakdown:

In conclusion, "sweet dreams" can be flirty, but it's not inherently so. Consider the relationship, tone, frequency, and individual personalities involved to get a better understanding.