sleep on
US /sliːp ɑːn/
UK /sliːp ɑːn/

1.
consultar con la almohada, pensar bien
to delay making a decision about something important until the next day, so that you have more time to think about it
:
•
I'll sleep on it and let you know my decision tomorrow.
Voy a consultarlo con la almohada y te haré saber mi decisión mañana.
•
It's a big decision, so take your time and sleep on it.
Es una decisión importante, así que tómate tu tiempo y consúltalo con la almohada.