So you will need to get to pine design furniture.
Now go to the Sleepy sleeper and interact with it (It doesn't have to be night time)
Leave the house and collect all ideas to give to the guy
Ride on the magic carpet
Put everything in the correct place (ex: Sloth with jungle guy)
Go into the portal
Now you will see a giant wobbly who spawns clouds. Parkour on them so they don't disappear beneath your feet!
Now you will see a golf course this part is simple. Just buy the kings invitation. Don't worry if your broke they're free.
Now use the invitation to get past the courageous knights.Now arrive at The Sleep kings castle

So now that your at the castle grab the alarm clock and key and go as far as you can without them despawning.
Now smash them together and run to the first room. You should see a pot, Fill the pot up with all the ingredients. The key should fall down.
Now go to the second room. In this one you need to parkour across the room to get the key.
The third room contains a bathroom and bedroom with panels scattered around. Put them in this order: 1:Princess and dragon 2: Knight and cow 3: Knight and dragon fighting 4: Princess knight and cow 5: Princess and Knight get married. You should get the key.
Now skip the fourth room and run upstairs there should be a glowing idea.
Now grab the idea and jump downstairs toward the couch. Once you reach him he should say something like "What a great idea I've always wanted to be a car!"

Now you can drive around on a sofa! It's your dream come true!