I wouldn't stop a 6 week premie from sleeping during the day! During the day keep the lights on and t.v, music etc on but at night keep all lights off and keep it very quiet. Cuddles and play during the day, feed and straight back to bed without a fuss during the night! Worked a treat for both my girls :-)
Try not putn her dwn for naps & if yhu do get her up so she wont b up at night : ) & try to mak naps the same time evryday
She is 6 weeks old. She was born 5 weeks early though.