Prunella, C self-settles in the cot now. She used to have dummy and swaddle and never fell asleep without lots of help. We had to wean swaddle, decided to take away dummy too and did some sleep training. If you want all the details I can PM you. It was tough for a little while but now she falls asleep pretty easily. Longer naps coincided with sleep training - not sure if training cause longer naps or just coincidence. This morning I put her to bed at 8am, she chatted to herself for about 15 minutes then fell asleep. She's still asleep now - a very long nap.
For all those concerned about sleeping clothes/bags etc, I was getting worried about whether she was cool enough/warm enough in lots of different temperatures and could see myself buying lots of different tog bags - instead I bought one merino sleeping bag. It is apparently for use between 16-27º, with either vest+babygro, vest only, nappy only etc underneath depending on temperature. It was 25 in our room, so went to bed in nappy+short sleeve vest+sleeping bag and seemed fine. The merino wool helps babies/anyone regulate their own body temperature, in comparison to other sleeping bags with synthetic fibres which makes it easier to overheat. It was expensive but we'll use the same one all year round, plus it's enormous so she'd still fit into it as a 2 year old, I reckon!