We've recently purchased a Carioca 656 with fixed bunks. We use the bottom bunk for our baby with a bed guard to make it like a cot but even with the heating on it's really cold! Our last trip in November she was wrapped in 2 sleepsuits (one fleece) thick sleeping bag and 2 blankets and was still cold while the rest of us were throwing the covers off because we were too hot. The mattress was cold to touch. Not sure if it's the position relative to the heater (right next to it) or the 'garage' underneath but I need a way to make it warmer. Any tried and tested solutions please?