The 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 or above without any risk). Furthermore, if the crib is still not at the same level as the parents'bed using this height positions, the wheels can be removed. This way, there will be 7 more height settings to choose from.
** (Height from the floor to the top of the mattress)