Could I sleep on it and let you know tomorrow? 能不能让我晚上考虑考虑,明天答覆你?
sleep on something: to delay making a decision about something until the next day, so that you have time to think about it 把...留待第二天决定;把...拖延到第二天再说 来源:可可英语 //www.utensil-race.com/kouyu/201003/98479.shtml