I have similar trouble, i can spend half the day in and out of his room trying to get him to sleep but then if i give in and bring him downstairs, he will fall alseep in my arms, ill lay him on the sofa and he sleeps fine, hoover on, telly on, nothing wakes him..... i think maybe he gets overtired so will only settle with a cuddle? Or if i put him in his pram, which he loves, and take him for a walk, he'll sleep for ages too! Ive tried taking him up once his asleep but he still dont sleep as long as if he was downstairs?
I know it takes time to for them to get used to it but i dont even get time to have a shower some mornings?? ill give the "wound down" time beofre naps a try!
xx