Hello from Massachusetts, USA, where it is also cold: -3,3C right now, expected to fall to -11,7C by tonight.
Category FF and higher have a large window that is located on the same wall as the bed. (Some of the lower categories have small porthole windows, but that is not what you booked.)
You can click HERE
for a photo of the cabins on Volendam from HAL's Web site. I've found they are pretty accurate.