Mix together the pudding mix, water, and sweetened condensed coconut milk until smooth. Refrigerate for at least 4 hours, or overnight until it sets up.
When the mixture is chilled, pour the dairy free heavy cream into a large bowl and whip until stiff peaks form. Add half of the whipped cream into the pudding mixture and mix until incorporated. Add the other half and mix again.
In a large bowl, add a layer of pudding, then Lorna Doones, then pudding, then bananas. Repeat until all the pudding mixture is used. Cover and refrigerate for at least 30 minutes before serving. Enjoy!!!