Answer: Hypersomnia
Explanation:
Hypersomnia, can be either excessive daytime sleepiness or excessive time spent sleeping.
It is a sleeping condition in which a person has trouble staying awake during the day. The person is always sleeping regardless of where they are or what they are doing and at anytime of the day.
It is characterised by long hours of sleeping at night maybe up to 10hours, yet intermittent sleeping or dozing during the day regardless of where they are or what they are doing. From the Question, Tamara's husband can even sleep during meal times and in the middle of conversation. That is how bad hypersomnia can be. It is the opposite of Insomnia, which refers to the ability to get enough sleep especially at night.
Recall that An adult is supposed to sleep between 8-9 hours to be healthy and alert during the day. Anything short of this that happens frequently, can either be Hypersomnia or Insomnia and Should be looked into As soon as possible.