Hey there! While the provided search results didn't offer specific instructions on how to dismantle an IKEA sofa, I can certainly give you some friendly advice based on general experience with their furniture.
The good news is that since you built it, you can definitely take it apart! The best and safest way to do this is to find your original assembly manual. The disassembly process is simply the assembly process in reverse. If you've misplaced the paper copy, you can almost always find a PDF version on the IKEA website by searching for your sofa's model name (like Kivik, Ektorp, or Friheten).
If you can't find the manual, don't worry. Start by removing all the cushions and any fabric covers. This will expose the frame and the hardware holding it together. Look for the main connection points, usually where the arms attach to the base and where the back connects. You'll likely need an Allen key (hex key), which is a staple for IKEA furniture, and possibly a screwdriver.
Work slowly and methodically, taking off the pieces in the reverse order you likely put them on. This usually means the arms or back come off first. A great tip is to put the screws, bolts, and other small hardware for each section into separate, labeled plastic bags. Taking a few photos with your phone as you go can also be a lifesaver when it's time to put it all back together. Just take your time, and you'll have it apart before you know it
