How many sunnah do you after each prayer?

Salam

                                             Fard are Obligatory

For Fajr,: 2 Rakahs Sunnah (can be performed after the fard) 2 Rakahs Fard,(Obligatory)

Dhuhr: 4 Rakahs Sunnah, 2 Rakahs Sunnah, 4 Rakahs Fard, 2 Rakahs Nawafil( Nawafil are Voluntary)

Asr:4 Rakahs Sunnah, 4 Rakahs Fard

Maghrib: 2 Rakahs Sunnah, 3 Rakahs Fard, 2 Rakah`s Nawafil

Isha: 4 Rakahs Sunnah, 2 Rakahs Sunnah, 4 Rakahs Fard, 3 Rakahs Witr

S.A.W

And in Midnight, The Tahajjud Salah, its Voluntary,but Prophet Muhammed performed it regularly, and Prophet Muhammed S.A.W encouraged also his companions to offer it,

Surah Al Israa, 17:79

And from [part of] the night, pray with it as additional [worship] for you; it is expected that your Lord will resurrect you to a praised station.