Hi Gee99
to NGA
I think my plant is S. trifasciata laurentii, on account of the yellow margin on the leaves
Mother-in-law's tongue (Dracaena trifasciata 'Laurentii')
in case anyone is wondering, the bulk if it now resides on the floor in a darker place and the tallest leaf is 56inches
the rest of it is in a different pot at that window working on reaching the ceiling again