Parents are allowed to visit and spend time with their babies staying in the NICU, but other family members can visit only during set hours and only a few at a time. Children visiting the NICU must not be sick and have all their immunizations.
You can always check with the hospital staff about which family members can see the baby. Some units require the visitors to wear hospital gowns, gloves and mask before entering. This is crucial as it keeps the NICU clean and prevents babies from getting exposed to the germs.