My sweet 17 y/o girl was 95 % blind and deaf, peed where ever she was, had dementia, she would get in a corner and not know how to get out, somehow would get under the kitchen table, get confused and couldn't get out. I removed all the chairs except one which I flipped over and put it on the table, she had a good appetite, drank water, slept most of the day, played new game called bite the momma's nose when she kisses me. It was painful to see my once little baby puppy now a blind,deaf senior, but I couldn't have loved her more. I could NEVER think of putting her down because she had aged. She was not in pain, she was healthy. Then her time came and I had to let her go,she was not the first I had to have put down but it never gets easier. I thought she would be with me until she was 20 y/o I was devastated. If your senior baby is not in pain, if he is eating and drinking, you can confine him to what ever room you are in, I laid down plastic in my living room because she peed several times on the carpet, she had a bed in the living room for when I would watch TV she could be in that room, the carpet was protected. She had a bed in the kitchen for when I was in the kitchen. Just as we puppy proofed our home when they were a wee baby, I senior proofed my home for her. I swore no more dogs. The pain of losing them had become to overwhelming. I packed all her clothes, things I had saved from my 4 other yorkies, harnesses of every size, I donated everything to my local no kill shelter. I was not planing on another dog, cried all the time, I have had dogs in my life for 40 + years, I didn't know how I would be able to live without one but I was going to try. Fate has a way of throwing monkey wrenches into our lives sometimes, my vet gifted me with a 2.5 y/o baby boy that had been surrendered by his owner 6 weeks after I had to let my little girl go. He rescued me, and my HOUSE became a HOME again, the hole in my heart was filled with love for this poor sweet little boy that was not wanted anymore. Talk to your vet, ask his / her advise, see if they feels it would be better to let him go. This is a horrific decision to make one that I am glad I didn't have to do God decided for me. (((hugs)))