Casper is 15 months old and up until a few months ago he spent 9-10 hours a day home alone. He did have to adjust but was fine after a few weeks! He still has some accidents but his usually happen on the kitchen tile which is great. If you're going to be gone that many hours and he is not quite potty trained maybe you could get him belly bands so he dosen't mark up your house. I hope all works out for you and you get to take your baby with you!