Tropicbreeze, I think I have the same lily. Nightbloomers are sold here by two names, white or pink. I've had this one for about 3 years, it was slow starting but now it is growing huge and I have several others potted and blooming as well. The young leaves are a beautiful copper/red color with ruffly edges and start out an arrowhead shape. I think it does spread by seed as I find tiny plantlets from it in all the pots in the pond. The blooms are very large, stand well above the water and last about 3 nights. Mine too will stay open in the morning until the sun hits them.
