hi.. i have understood your concern... your husband is diagnosed as bipolar disorder in the past and for the last 1.5 years, he is in bed, not doing any work, not talking properly, tired, lethargic..so it feels that he must be in depressive episode of the bipolar disorder and mostly he is bipolar type 2.. there are drugs approved for the bipolar depression and u can give him on a regular basis..i dont know about the previous treatment details.. in my opinion, u shud give him drugs I am mentioning here.. tablet. fostera [10 mg] once at night..fostera is a combination of fluoxetine [20] and olanzapine [10]..which is USFDA approved for bipolar depression...start giving this drugs to him and gradually interact with him about his illness and what he thinks about his and family s future.. u shud educate him about the current condition of the family and ask him what he can do? u can take him to the counselor or psychotherapist.. when he starts talking about all his problems, he might realize that he has to do something for the family and he cant just sit whole day in a room... other drugs u can give are: tablet. quetiapine [100 mg] at night and can increase up to 400 to 700 mg in aday..depending upon the response.. i hope this advice will be helpful to you..best luck...