This was a prospective survey study, comparing parent-infant closeness, parents' perceptions of nursing support, and participation in medical rounds in single-family room (SFR) and an open bay (OB) neonatal intensive care units. Nurses' assessments of provided support were also measured. In total, 115 parents of 64 preterm infants less than 35 weeks' gestational age and 129 nurses participated. Parents recorded the presence and skin-to-skin care. Parents were sent 9 text message questions in random order. Nurses answered corresponding Internet-based questions. SFR mothers were more present, 20 hours daily (median) versus 7 hours (P < .001), initiated skin-to-skin contact (SSC) at 4 versus 12 hours (P = .03), and preformed SSC 180 min/24 h versus 120 min/24 h for mothers in the OB unit (P = .02). SFR fathers were also more present, 8 versus 4 hours (P < .001), initiated SSC at 3 versus 40 hours (P = .004), and performed SSC 67 min/24 h versus 31 min/24 h (P = .05). SFR parents rated participation in medical rounds and emotional support higher than OB parents. Parental trust was rated higher by nurses in the OB unit (P = .02). SFR facilitated parent-infant closeness, parents' participation in medical rounds, and increased support from nurses.