The Pets expansion pack (and the game patch from around that time in case you don't have Pets installed) has caused some issues with custom beds and loveseats. All the beds and loveseats that can be downloaded on The Sims Resource have already been fixed, so any of those objects downloaded now will function correctly in your game.

For the beds and loveseats that were already installed in your game, we've made a little program so you can fix them.

You can download this program here: http://www.thesimsresource.com/workshopdl/Sims+4+Cats+and+Dogs+batch+fix+1_0_1.zip.

Once downloaded, move the program out of the zip file to somewhere on your computer and start the installation of the program. After the program has been installed, you can start the batch fix. Click on the "Run" button and select the Electronic Arts/The Sims 4/Mods folder inside your Documents folder. Click on OK, and the program will start fixing all your beds and loveseats.

You'll see a progress bar showing how far it is with going through all the files in your Mods folder (if you do have a very large amount of CC, this can take some time). Once all beds and loveseats have been fixed, you'll see a screen saying xxx rig definations updated. To close the program, click on the small x in the upper right corner.