Speaking from my experience as an only child it does have its ups and downs but I always longed for a sibling. Now that I am older I think I long for it even more as I see my husband and his family. He has 2 other brothers, both married and one has a child. They have each other and his parent's house is always full on holidays or even on a leisure weekend when we visit. Everyone comes over and hangs out. I just don't have that at my parent's house- its just the 5 of us.
I hope to adopt again, hopefully before Lucas gets too big and we get too comfortable with a settled routine. Yes, I too like my sleep and I think, when we he gets older, things will get easier. But my dream for Luke is to have a full house for the holidays, to have siblings, and future neices and nephews and brother or sister-in laws. I think I would love to have a house full of grandchildren too