The crib bed base can be set to 7 different positions, so that it's at the same level as the double bed (although it can be 1 or 2 cm below it without any risk). Furthermore, if the crib is still not at the same level of the parents' bed using these height positions, the wheels can be removed. This way, there will be 7 more height settings to choose for.
** (Height from the floor to the top of the mattress).