My 19mo is normally been a fairly good sleeper but the last couple of weeks has refused to sleep in her cot - it's been made worse by the fact we went on holiday last week and she hated her hotel cot bed so would end up in our bed.
I thought maybe she just needed to get back into her routine at home in her own room but we have had a week of not wanting to sleep in her cot for naps or night time.
We put her down exactly the same as we always have - milk, bit of night garden, then into her room with black out blinds and white noise, few lullabies to get her relaxed then into bed with her favourite muslin. Except now every time we put her in the cot she sits up and screams blue murder. We end up rocking her until she's fast asleep and then transferring to cot, but even then she wakes up at night and we normally end up bringing her into our bed so we can all get some sleep 
She has been a bit a clingy recently- lots of mummy mummy all the time, and following me around. Is this some kind of development phase?!? A sleep regression?
Any advice appreciated! I have no idea what to do!