Long ago I can remember my grandmother telling me that one should always sleep in all of one’s guests’ beds, to make sure that they are comfortable.

Eleanor Roosevelt (1884–1962) American politician, diplomat, activist; First Lady of the US (1933–45)
Column (1941-09-12), “My Day”
    (Source)

Writing with relief to discover that the Lincoln Bedroom bed, where she had to sleep while her room was being painted, was in fact comfortable.