I have been carrying DS in his sling since birth and I don't have any problems (touch wood) putting him down i the bassinette in an evening. I try to feed him about 6pm, then again about 8pm before putting himdown about 8.30. It is the only time I can put him down awake and leave him to self settle. I have some success putting DS down for a morning nap, but in an afternoon, he wants to hang with me. Personally I think there is too much he wants to see, sometimes I have to cover him with a muslin wrap to get him to sleep.