Sleeping Wren in dreams
A tiny, busy bird — small attention paid to the small thing that is actually moving.
How sleeping changes the reading
Sleeping in the dream means the symbol is present but dormant. The base reading still applies, but it is not active right now — sometimes the dream is asking whether you want to wake it up.
The base reading of Wren
A wren in a dream is the dictionary's image of vigilance scaled down to the size of the thing in front of you. It is the part of attention that does not need to be large to be accurate — the small, fast notice that catches what a slower eye would miss. A wren near the home is the dream pointing to a domestic detail you have stopped registering. A wren singing is the dream noting that the small, ordinary commentary on your life still has something to say.