Conditions & Fundamentals of Hajj and Umrah

Q: Is it permissible for a person in ihraam to cover himself with a sheet or duvet when sleeping?

Q: What is the Shar’ee ruling if a person had performed the tawaaf of umrah without wudhu?

Q: ​I am planning to go for umrah but I wear a wig due to baldness. Can I continue wearing the wig after ihraam until the time that I commence the tawaaf for umrah?

Q: When wearing the ihraam cloth and making tawaf around the ka'bah, I am afraid that part of my awrah (just below the navel) will be visible at times, especially when flipping the cloth to the idhtibaa' position etc, since I am not used to wearing this cloth. If my awrah shows, will the tawaf still be valid. Will I have to pay any compensation for it?

Q:

1) Is it permissible to use a roll-on deodorant before entering into ihraam? 

2) Before entering into ihraam, is it permissible to apply an itr which leaves a colour stain on one’s ihraam?

Q: Last year I had gone for hajj with my family (mother and wife). Before leaving for hajj (during it's preparation) I had made my wife owner of the amount which was to be spent on her for hajj (Rs.2.5 lakh). During the journey I instructed her to make niyat for Fardh Hajj as she was made owner of money. But by mistake she made niyat for Nafl Hajj and completed the Hajj journey. I would like to ask whether the Hajj she did would be counted as Fardh or Nafl. If Nafl, does she have to do Fardh Hajj now again. At present neither me nor she has any money. She has only her jewellery. If ruling is for Fardh Hajj and either me or she dies before doing it, then what happens. I would like to make it clear it was 1st Hajj for myself and wife.

Q: If a husband has already performed Hajj, is it compulsory for him to send his wife for Hajj as well? Under what condition Hajj becomes compulsory for the wife?

Q: When a person makes istilaam, should he only raise his hands in the first round when commencing the tawaaf, or should he raise his hands in every round of the tawaaf when he passes by the Hajr-e-Aswad?

Q: I am planning to go for umrah with my father who is elderly. He can walk slowly, but it would take extremely long time for him to perform the tawaafs and sa'ee walking, and he would have to stop many times to rest. Will it be permissible to take him in a wheelchair, even though he technically can walk, since this would be easier for him?

Q: I planned to go for Hajj with my wife but she got pregnant and then I went alone and performed Hajj this year. My question is: Is it compulsory on me to take my wife for Hajj; if yes then when? (I heard I can't go for Hajj for next five years according to Saudi Hajj Policy as I just performed Hajj this year) Is it fardh on the husband to take his wife for Hajj?