Baby playpen + full‑size playard mattress, 37.5 in × 25.5

It comes with a Mattress as you need to buy it separately to let the baby sleep in it. The exact name is: Baby Trend EZRest Nursery Center - Circle Pop - R Exclusive— easy to fold up and store in its carrying bag. Removable full-size bassinet One-hand locking mechanism Dual wheels with foot activated locks for easy mobility Assembly Height: 28.35 inches Assembly Length: 40.16 inches Assembly Width: 42.52 inches Item Height: 9.00 inches Item Length: 31.10 inches Item Weight: 25.00 lbs Item Width: 9.00 inches