This is a simple act which will be greatly rewarded by Allah. Is it possible to get the reward of tahajjud while we are sleeping? Is there something we can do? Alhamdulillah yes!
In a hadith in Sahih Muslim the Prophet (pbuh) said “The one who performs salah of isha in congregation it is as if he prayed half the night, and one the prays fajr in congregation it is as if he has prayed the whole night”.
What about the sisters? Allah is just! If sisters pray the salah on time they will get the same reward.