Just think, the wood flooring you just spent your hard earned money on is about to be nailed, glued or floated at your property.
Most manufacturers want to see the wood sit for at least 3 to 7 days prior to install, to acclimate to the new environment. I actually prefer longer depending on certain factors.
In this picture, maple flooring was cross bundle laid for best airflow over as much wood surface as possible. Why just bring the wood in the house and leave it in a pile.
Remember, subfloor and new wood must be within 4% moisture content within each other, preferably around 8%. And the heat must be set to the daily living temp replicating the environment to be. Do not drop wood off at an unheated home!!!