It is better to spend the Night in Mina by staying the entire Night
Indeed Allaah granted me success and I performed Hajj along with my wife. During the three days of At-Tashreeq we only stayed in Mina until 1:00 am at night and we would return to Makkah and spend the night there as we had a house there. Is this permissible? Please benefit me with an answer, and may Allaah reward you with good.
Spending most of the night in Mina is sufficient, and all praise is due to Allaah. There is no sin on you and your wife, but if you had stayed in Mina the entire night that would have been better, in following the Prophet sallAllaahu `alayhi wa sallam and his Companions may Allaah be pleased with them. And success is from Allaah.
Shaykh `Abdul-`Azeez Bin Baz
Fatawa Islamiyah vol.4 p.231 DARUSSALAM