Ibadah does not only mean to sit on you prayer mat and indulge into praying and making dua. Rather Ibadah has a vast and greater meaning. All that you do to seek the Pleasure of Allah is nothing but Ibadah let alone that this situation is finding you in the Holy Month of Ramadhan where even your sleeping and breathing is counted as Ibadah.
seeking knowledge is one of the greatest Ibadah a Human can indulge himeself into.It is so lofty in poisiton that it is mentioned in numerous Narrations, that the best thing a soul can do on the powerful NIght of Qadr is to seek knowlege!
so you my Brother are doing nothing but Ibadah thoughout your time. whether studying or sleeping in this Holy Month.
do keep us in your Duas.