What's the size of the Joolz Essentials sheet? The size of the Joolz Essentials sheet is 28″ × 26″. It's suitable for each Joolz model. Was this article helpful? 0 out of 0 found this helpful Yes No Related articles How long can I use the Joolz Hub bassinet, cocoon and seat? What's the size of the Joolz Essentials fitted sheet? Can I bring my Joolz Aer along as cabin luggage?