Just an update on this. I have moved my family from the home with the "no woohoo" bed, but before I did I tried several things to try to fix it. None worked:
1. Reset the bed.
2. Replaced the bed.
3. Traded beds with the other bed they kept going to. Still wouldn't woohoo in that room.
4. Tried resetting almost every object in the room.
5. Removed the rug under the bed.
6. Tried a different combination of Sims.
It seems to me that it has more to do with the room than the bed. If I knew how to reset the room, it might have worked. I have not had a problem with any other beds in the game, just the one room with whatever bed is in it.