See Post: THE HOLY MONTH OF RABI’ AL AWWAL
It is advisable to stay awake all night long, or as much as one can and to have some rest with the intention to pray Tahajud, the prayer before Fajr prayer: that will count as a full night wake.
Traditionally they pray Salatul Tasbih and they sing the Mawlid, the praisings of the Prophet (s.a.w.s.).
During this month it is important to give sadaqa in the name of the Prophet (s.a.w.s.).
Some says the night of Mawlid is equal in importance as the night of Laylatul Qadr.
Mawlid (Arabic: mawlidu n-nabiyyi, “Birth of the Prophet”, sometimes simply called in colloquial Arabic mawlid, mevlid, mevlit, mulud among other vernacular pronunciations; sometimes mīlād) is the observance of the birthday of the Prophet Muhammad, s.a.w.s. which is celebrated often on the 12th day of Rabi’ al-awwal, the third month in the Islamic calendar. The 12th Day of Rabi’ al-awwall is the most popular date from a list of many dates that are reported as the birth date.
The origin of Mawlid observance reportedly dates back to the period of the early four Rashidun Caliphs of Islam. The Ottomans declared it an official holiday in 1588. The term Mawlid is also used in some parts of the world, such as Egypt, as a generic term for the birthday celebrations of other historical religious figures such as Sufi saints.