Our 4 1/2 month DS is a delight. He sleeps pretty well at night, usually h babbles himself to sleep rocked without needing to be after the 10pm feed and will usually sleep until the 6am feed.
The day time and evening naps are a bit different, he sleeps but it almost always takes a period of rocking or jiggling him in his cot, which is a moses basket. The technique works fine but has its drawbacks. He's getting too small for it and we need to move him into a larger bed soon. We can't always take the basket with us when we travel or go camping.
What techniques do successful Mumsnetters use to sooth similar aged DS and DDs who clearly need a snooze but just don't recognise it.