Are Bamboo Pyjamas Warm? To put it briefly, bamboo pyjamas keep you cool when it's warm, and warm when it's cool. The cross-section of the fibres has micro gaps for better ventilation, so the heat can manage to escape when your body is feeling like it is overheating; but also allows for fibres to trap the warmth produced by your body, to keep you warm. Bamboo is a clever material and the temperature regulating feature is one of the reasons we love it so much for our core nightwear collections! Are Bamboo Pyjamas good for Autumn/Winter? Yes! Our bamboo nightwear...