Is a wife obligated to sleep with her husband in the same bed despite disagreements between them?

It is not permissible for a woman to abandon her husband's bed without a valid reason, based on the Prophet's (peace be upon him) sayings: "If a woman spends the night abandoning her husband's bed, the angels curse her until she awakens," and "By Him in Whose Hand is my soul, there is no man who calls his wife to his bed and she refuses, but the One who is in heaven becomes displeased with her until he (the husband) is pleased with her." It is preferable for the spouses to sleep in one bed, unless sleeping with the husband ignites the fire of disputes. In such a case, there is no harm for the wife to sleep alone if the husband is not angered, and she must obey him if he calls her to the bed.