It is very important to me that my older cat gets enough sleep in order to repair and restore his body, brain, and immune system. Would anyone please have any advice on how to get my 11 and 1/2 year old cat to sleep more? He seems to be getting only about 10 or 11 hours of sleep when a cat his age should be getting close to 16 hours. A lot of the problem is I am home most of the time and my cat seems to have trouble sleeping if I'm not too. I wish he would just go to my bedroom and go to sleep on his own but he always wants to be in the same room as me. I am concerned about his immune system weakening and him getting sick or senile prematurely. Because I am home alot I monitor his sleep habits. His sleeping would be equivalent to me only getting 4 or 5 hours of sleep every night when I should get 7 hours minimum. Please advise.