Does the Aer+ Cot fit on the original Joolz aer?

Yes! The Aer cot fits the Aer+ and the Aer+ cot fits the Aer.

The video below also shows the differences between the Joolz Aer Cot and the Joolz Aer+ cot.

They have very similar hardware, and connect to the stroller frame exactly the same way. The key differences between them are:

• Aer+ cot has an updated fold lever – to make the fold a little more intuitive as the Aer cot fold mechanism involves lifting up on the lever while pushing down on the cot, while it’s very easy to do, it’s not the most obvious movement.
• Aer+ cot can be folded flat while not attached to the frame – another benefit of the updated fold mechanism
• Aer+ cot has a larger sun hood

Otherwise the size, weight, dimensions, fabrics, feel – everything else is completely the same, and unless you were comparing them side by side or were familiar with their different fold levers, most people wouldn’t know which was which.