Hi AngelDog - is this for bedtime sleep or naptime? My DS (now 7 weeks) struggles to get to sleep, and then to stay asleep, at naptime, but (fingers crossed and touching wood) we seem to have cracked bedtime.
I don't know whether it's because of the routine I have had in place since he was about 2 weeks old, but it might be worth a try (I do not deviate from it just in case - so this does mean I bath him every day!)
I feed between 6.30 & 7pm (EBF), he usually nods off, but rather than put him straight to bed then I give him a bath (he loves them though), (if he has nodded off while feeding he is awake again by the time I am undressing him), after his bath I rub some body lotion in, dress him and carry him to the bedroom. I do not have a light on in the bedroom, just the hall light which gives me just enough to see by to swaddle him. I talk to him in a gentle voice after his bath, about him being all clean and ready for bed etc etc.
Sometimes he does cry, either at the swaddling stage, or at the holding upright against my body stage, as though he knows that bedtime is coming and objects! I too hold him upright to me after swaddling -sometimes if he cries I have taken to trying different positions - sometimes just cradled in my arms. I don't pat, as this seems too much for him, but I sing a lullaby, or shh next to his ear as you do, and rock back and forth as I sit on the bed.
If he crying then I try to keep going until he is quiet before I put him into his basket. Sometimes though I feel that the shhing and rocking are making him cry more though, so a couple of times I have put him down in his basket when he is crying a bit (not screaming) and he stops!
I'd say 4 or 5 nights out of 7 he stays quiet when I put him in the basket, and gets himself off to sleep. Sometimes he does cry for a few minutes and then gets to sleep. Occasionally he will scream, and not settle, and then I find a dummy does help him fall to sleep.
Hope this gives you some ideas. Good luck