Both my DD's were jaundice with DD1 under lights for about 5 days. Her levels were very high and they were talking of transfering her to a larger hospital but fortunately they came down the day she was to be transfered.

When DD2 was born she also had jaundice but we were told to put her in front of a window where the sun came through for about 10 minutes a couple times a day.
Thankfully the weather was warm enough to do this for both but it would be harder in winter.

I B/F both girls and never feed them overnight while in hospital