9 months before and after birth, are the most responsible in the development of the baby, because he needs to adapt from the state of" weightlessness " in the womb, to the state of gravity and gravitational rhythms. For a small body it is a big load.
It is in the postpartum period, at the most critical time for the baby, you need a hanging cradle to sleep. Can you imagine how it feels to the astronauts on earth, after months of flying in space? As a baby, which in contrast to the adults to overcome this barrier is much more difficult. Therefore, the cradle for him will be the best cradle in the period of adaptation, especially in the first 9 months from birth, when all vital processes are formed. And in psychological terms, such a cradle will protect the child from external and internal fears and stresses.