Final answer:
The statement indicates that Rainsford values comfort, particularly after enduring hardship or exhaustion, and appreciates a good bed when he finds one.
Step-by-step explanation:
The line "He had never slept in a better bed, Rainsford decided" suggests that Rainsford appreciates the comfort of a good rest. Considering the context in which this sentiment is expressed, after a period of exhaustion and potentially stressful or arduous experiences, it can be inferred that Rainsford values moments of relaxation and the quality of his rest. There is no direct evidence in the line to suggest nostalgia, a preference for the wilderness, or that he misses his own bed. Hence, we can confidently lean towards the inference that Rainsford appreciates comfort.