My old dog, has arthritis, skin problems, and tumors. He has trouble standing up when he is trying to get up. He gets very stressed out at the vets office and needs to be muzzled. He is on his last legs he is very slow moving. I know he is suffering and i want to put him to sleep in the comfort of my own home rather than the vets office. He hates it there, and he gets so stressed out he becomes very vicious and gets very scared. He has been this way since he was a pup. As he has gotten older its become worse over the years. I love him dearly but when i see him struggle with his everyday life. There is no quality. So I want him to comfortable in his own bed with his family by his side when he passes. Would sleeping pills work?