Before buying another machine, maybe it would be worthwhile to try putting something under it to absorb some of the sound. I'm thinking some sort of dense, cushioning material such as yoga mats are made of might do the trick. In fact, you could try just putting some folded up batting under it to see if that makes any difference. The trouble with the batting will be that the machine may move around. Another option is a non-slip placemat or shelf liner often available at dollar stores. If there is a wall between the machine and the bedroom, you could hang a curtain (or a quilt!) over it to work as a sound barrier. I did this inadvertantly by hanging a quilt in front of my desk. My DH's desk is on the other side of the wall, and even though there is an open door to my left we have trouble hearing each other clearly and one of us always has to get up and walk over to the door when we have something to say. We have joked about calling each other on cell phones or using IM.