On the couch? Or, should I invest in an inexpensive sweater drying rack? No. No, No, NO!
After handwashing my sweater and rinsing it in the bathtub, like a body builder, I hoisted the overweight sweater onto a tension shower rod and let the water drip down in the the drain. Would it stretch out of shape? Would I ruin it? Well, take a look at the results for yourself. Maybe the instructions should also read, "throw it over a shower rod and let it drip dry." It worked for me!