Is it reasonable to expect 6wo to be able to self settle?only way we can get dd off to sleep is either feeding her to sleep or walking her around in sling.she won't sleep if left alone in cot/pram,even if she's extremely tired.she's incredibly curious and won't close her eyes!any tips how we can get her to self settle?especially at nap times during the day..tried shush-pat thing,rocking,singing..run out of new ideas,one time we even tried letting her cry but even that didn't work and it upset me too much to try again!