(Poof! A tortoiseshell teleports onto the bed!)
(This is the most comfortable bed ever...)
Step number 3: Take hold of the top sheet. At this point you should have roughly 50-75% of the cats in the household on the bed. It's actually pretty amazing because there's no other thing in the universe that will draw cats as quickly to one spot.
Step number 4: Attempt to stretch out the top sheet while all of the cats run around and play with each other. Some will wish to be on top of the sheet, others underneath. You may not be able to get the sheet very smooth. Live with it.
(Cat #4 was in the process of jumping off the bed just out of frame.)
(All cats have been safely transported back to an alternate universe.)