Release To Water

Saga Space Architects sounds like some secret what3words location. The reality far outstrips the concept and this is an aide memoir for me to contact a nice man in Denmark who in following an inspired dream spent three months high in the Arctic one month of the three in total darkness. and managed to do it in this century without any contact with the outside world during the dark month.  What I would like to ask is ... How did you stay warm?   AND if I were allowed a second question it would be ,,, How did you manage to see in the dark?