Those who really want to thank the bounties of Allah and decide to perform Namaz e Shab (Night Prayers) get the Tawfiq to perform it provided they don't indulge in sinful acts.
Sinful acts prevent the sinner who did not seek forgiveness from Namaz Shab as the Hadeeth says (If a person commits a sinful act during the day, he will be prevented from Salat Al-Layl in the night.) Biharul Anwar.
Wassalam.