We have a New Zealand female rabbit that has started gathering nesting materials, we introduced the nest box and she is using it. I have in the past tried raising rabbits, but none of the litters ever survived past 2 weeks. I want to do this right and maybe this time have good results, since my son would probably be very disappointed if they all died. We moved the mother out of the cage she was in and into another cage that we put in the shed to help cut back on wind and draft, also we put a heat lamp in there, not to close to the cage. Is there anything more we can do to assist the mother to be? My question(s) are 1. Besides straw/hay what (if any) other materials would be suitable for nesting? 2. Is the heat lamp a good idea? Any and all reply will be very much appreciated.