Yes, in the ideal world, no child/kitten should be left along for that length of time. But, times require we do things that go against the rules.

What helped me out was that I had three, so while I was not there, they did have each other to keep them busy. I got them at one day of age, but even at that age, they were left along for that amount of time each day but they survived because I though the situation through and tanked them full of food just moments before leaving and did it again the instant I got home.

Today, they are all very healthy and love me as if I was their maternal mother. And while I am a man, I don’t mind being referred to as a mother to my kittens, as in their eyes, I was and am still their mother.

For just one kitten, I would ask around and see if I could find a sitter, and if not, see if I could find someone that could check in on it regularly.

Kittens do need stimuli, and they can get it from a lot of areas. You can leave a radio on in one room, (voices work wonders in calming a cat down when stressed) but I would recommend it be talk radio and not a music station as some music can upset cats as it also does humans.

Another remedy would be to get another kitten, so they could "sit" each other while you were gone.

It’s doable, but you need to think it out and do what is not only best for you but also best for the kitten.

Hope this helps,