ANSWER:

It is not up to individuals to make takfeer on others as this can only be done by a Muslim judge or ruler. Insisting on getting someone out of the fold of Islam is the methodology of khawarij, the hounds of Hell. You must be more diplomatic and compassionate instead of wanting to get your own wife into hell! 

I was calling my wife for fazr prayer last night and she was in deep sleep. I called her few times she said she will get up after few minutes. I was calling her constantly then she got angry and said if I do this she won’t get up(for prayer). She then got up and prayed. Is her statement Kufr? That she said if you do this I won’t get up