The Tahajjud is a special Islamic prayer which is recommended (but not required) for all Muslims. The Tahajjud is prayed after Isha (the required nightly prayer) and before Fajr (the required morning prayer). If possible, it is most desirable to perform the Tahajjud between midnight and Fajr, preferably in the last third of the night. Though the Tahajjud isn’t required, many devout Muslims try to make it part of their daily routine as a sign of their devotion and as an opportunity to earn redemption and forgiveness from Allah. 
There are some easy tips that can help one to wakeup for tahajjud:
Go to bed early and rest
After the Isha prayer, the Prophet ﷺ would not like to engage in unnecessary talk and would go to his house to go to sleep.Societies that maintain going down with the sun inevitably rise with the sun, making the most of their ‘ibaadah or secure their livelihood.
By taking a nap after Dhuhr is one of the sunnah of our Prophet ﷺ. It is a great source of revitalizing your body and mind. This is one of the most effective tip to wake up one self early for ibadah.
Untie your three knots:
“During your sleep, Satan knots three knots at the back of the head of each of you, and he breathes the following words at each knot, ‘The night is, long, so keep on sleeping,’ . If that person wakes up and celebrates the praises of Allah, then one knot is undone, and when he performs ablution the second knot is undone, and when he prays, all the knots are undone, and he gets up in the morning lively and in a good mood, otherwise he gets up dull and gloomy. ” (Bukhari)
Celebrate the praises of Allah by saying:
Alhamdulillahi allathee ahyaanaa ba’da maa amaatanaa wa ilayhin nushoor “ٓAll praises be to Allah, who gave us life after killing us (sleep is a state of death) and to Him we will be raised and return ” (Sahih Bukhari, Sahih Muslim)
1. Perform ablution
2. Perform the prescribed dhikr adkhar
3. Read Quran
“The angels keep on asking Allah’s forgiveness for anyone of you, as long as he is at his Musalla (praying place) and he does not pass wind (Hadath). They say, ‘O Allah! Forgive him, O Allah! be Merciful to him.” (Bukhari)
Shared By Sr. Shazia Nawaz