Hi Huguenot, Anything is possible, but it may not be very aesthetically pleasing and isn't guaranteed to work as well as you would like. The effort (and money) used to buy some curtain rails, drill holes into the walls, hang the rails, buy some curtains and hang them too far outweighs simply insulating your home a lot more efficiently. If money is no issue, as Intexasatthe Moment mentioned earlier, then the best option would be to keep the heating on at a reasonable temperature the whole time. And buy some more duvets/blankets to cover up with, too. Regards, Ivo @ Plumbingwerx