Dd is 17 months now and has been going to sleep in her cot daytime and night time pretty well since about 8 months old. She's often had a few grumbles when initially put down but always gone off. Just this last week though during the day she's seeming to be really scared by the idea of being put down in her cot. She's tired, it's the right time for a nap and she says bye bye to all her toys, the washing machine etc. (her going to bed routine!) and when I get into her room I cradle her for a moment and repeat the word 'sleep' a few times and she yawns and relaxes but then as soon as I go to put her down she clutches onto me, breathes really rapidly and starts screaming. As soon as I hold her again she nods off, then wakes the minute I move her towards the cot. I've tried just leaving her there but she stands and screams her heart out for AGES. I tried for 1.5 hours today before giving in and taking her out in the pram - she was asleep in seconds, so clearly tired. Her room is quite dark, blackout curtains, but in the daytime little bits of light creep in which has never bee a problem. She has a favourite sleeping toy. I don't know why this has started happening now and what to do about it.