My 2.5 year old daughter has recently started waking any time between 11pm and 4am each night screaming her head off. Its really difficult to settle her, usually taking many, many cold minutes before she will let us hold her, or before she can stop screaming long enough to be understood. We have used controlled crying successfully in the past, but this seems like a different sort of upset. We're now having to take it in turns to sleep in her room with her, bringing her milk, stories etc etc. All the stuff we swore we'd never do. She's just started playgroup, but is geting on fine there. Is this just a phase? How tough should we be? Is it night terrors, or just difficult toddler behaviour?