Inclusion Criteria:  Gestational Age (GA) at birth 32+0 - 42+0 Admitted to NICU Parents are able to read, write and speak Finnish  Exclusion Criteria:  With a postnatal age of 14 days or more Apgar points were 6 or less at 5 minutes of age Has been found grade III or IV cerebral haemorrhage Major congenital anomalies Has intubated or receiving a nCPAP Has received analgesics or sedatives for less than 24 hours prior to the study