Easily inflates and does not deflate in case the pump stalls. On first use the mattress a little trouble out in the cover sinsérer barbapapa. But all other times it's perfect. The pump is small and it takes 5 minutes to inflate it. Folds and stores easily! It is in a pocket sewn to the cover. We are afraid that this will not fit but bends very well. My big regret is that there is no zipper on the sides of the down. My son narrête not to discover. I recommend buying the same brand but a less expensive model. Because you really foresee the establishment of zippers. 10 cm on one side and the other of about 20-25. My 3 year old son is comfortable in it.