In a mixing bowl, add cream cheese and granulated sugar. With an electric hand mixer, beat cream cheese and sugar together until smooth(around 30 seconds).
Add in the pumpkin, heavy cream, vanilla, and spices. Beat in for about 10 seconds, then while still beating, add eggs one at a time, until just incorporated. You do not want to over-mix the batter.
Pour batter in springform pan, over the Oreo crust.
Place the springform pan in the 10" cake pan, and gently tap the pans on the countertop, to release air bubbles that may be trapped in the batter.
Place pans inside a roasting pan, and carefully add warm water to the roasting pan until the water covers the bottom half of the cake pan.
Very carefully, place the roasting pan on the center rack in the oven, and bake for 1.5 hours(90 minutes).
When the timer beeps, turn the oven off and leave the cheesecake in the oven to cool with the oven for 1 hour. Do not open the oven at this time. We don't want the cheesecake to cool too fast, because that could cause the cheesecake to crack.
After cooling in the oven for 1 hour, remove cheesecake from the oven, and remove the cheesecake(with the cake pan) from the roasting pan. Allow to cool at room temperature for another hour or so, and then transfer to refrigerator to cool at least 4 hours, but preferably overnight.
Store in the refrigerator.