SandyinZ4: ABSOLUTELY! Overspray is the devil and you have to wash it off right away or it will require considerable elbow grease later. (Ask me how I know) I do mine on the bed and put a king-size sheet underneath. The larger they get, the more difficult they are to get basted evenly. For my last one I had cut my batting too tight and the top got angled a bit. By the time I got it to the end there wasn't enough batting left. Grrr! Can't imagine doing it on carpet - how high is the pile?