There is no authoritative information on how long a 30-week preterm baby should stay in the incubator, usually about 20 days, depending on the condition of the child. If the child is in good condition, he or she can leave the incubator earlier. There is no clinical data on the specific time for a 30-week preterm baby to stay in the warming box, generally need to stay in the warming box for about 20 days, if the child’s physical function is worse, it may be necessary to prolong the time in the warming box, the specific time should be based on the doctor’s orders. During the period of the child in the incubator, the doctor or nursing staff will test the child’s body functions, if the child’s vital signs are relatively stable, or eating better, and has the ability to suckle, and there is no apnea phenomenon, the weight also maintains a steady growth, generally can gradually leave the incubator, if the state is better, you can leave the incubator earlier. If you have any other questions, please consult your doctor.