Final answer:
The best response for a sales associate would be to provide a fact-based and unbiased answer about the sleeping bag's features and qualities.
Step-by-step explanation:
The best response for a sales associate when asked, "Is this a good sleeping bag?", would be to provide a fact-based and unbiased answer. They can mention the features and qualities of the sleeping bag, such as its insulation, durability, and comfort. They can also provide examples of customer reviews or ratings to support their response.