Some properties impose a minimum number of nights per stay and bookings may incur a surcharge if less than the minimum period allowed. (hotelinstyle.com)
Generally, you are required to stay a minimum number of nights per year to receive elite membership. (valuepenguin.com)
If the child lived with each parent for an equal number of nights during the year, the custodial parent is the parent with the higher adjusted gross income. (irs.gov)