As I was strolling past the myriad stalls at a recent handicrafts fair in Kolkata, I overheard a saleswoman explaining the merits of ‘sitalpati’ to a customer. Curious I drew closer and found the customer holding an overnight bag in her hand; it was made of shitalpati indeed. In the 1970s, when an air conditioner in a middle-income Bengali home was an avoidable luxury, I recall my grandmother rolling out a ‘shital pati’ during summer and urge us, her grandchildren, to sleep on it. Now, several decades later, I cannot say for sure if it was the ‘cool mat’ or her power of storytelling that put us to sleep during those hot summer nights. But the smooth and silky feel of the mat remained etched in memory.