G.G.
Hi N.,
My daughter was a great sleeper until 4 months of age. Then she started waking up every 2 to 3 hours and I would take her out of the crib and rock her back to sleep. Well, by 1 year I couldn't handle going without 8 solid hours of sleep. I finally told my husband he was "on duty" one weekend, and that's all it took. The first night she cried when he went in instead of me, but by Sunday night she only woke once and my husband went in and patted her back. Monday night she slept 12 hours straight through. I'm not saying it will be this easy for you, but maybe try it for 5 nights in a row and see if he wakes up less.
If you try it and it doesn't work for you, a great book you might want to read about infant and toddler sleep patterns and how to gently change them so everyone can sleep is "No Cry Sleep Solution" by Elizabeth Pantley.
Hoping you get the sleep you need,
~G.