Jessica- I currently have my DD's cot made with a flanelette fitted sheet on thebottom, a flat sheet folded in have tucked in the three sides, DD in a grobag (yours would be in singlet, longsleeved body suit and all in one suitie( ?) and wrapped in a wrap) a 100% wool blanket on top and two lighter cotton blankets on top of that. On cold nights (when temp outside drops below 10) then I put a small oil column heater on low seating to get the chill out of the air but not so much heat the room. Just tuck all your bedding tightly around the three sides with your bubs' feet at the bottom of the cot. Very exciting waiting for bub, isn't it? GL for the birth and bubba's safe arrival. PS I waited and waited and waited until 42 weeks for DD to arrive!