we ask the mothers to bring over new fluffy towels and we put them around the babies to form a nest...this helps the motehrs of small premmies who feel helpless most of the time....in the emantime it helps by providing self quieting behaviors conserving energy whih is so important for preterms....you can also get some ideas from the book written by Janine Young in 1996 developmental care of the premature baby ....hope you will find this useful