I'm at the end of my tether
My DD is 3 and is a great sleeper (or has been), starting a few months ago she stays at her dad's Thurs&Fri overnight (court arranged).
But EVERY Saturday without fail she will get up every 2-3 hours through night for a "cuddle". I never indulge and always put her straight back to bed but this continues (and dies down slowly) until about Tues/Weds when she settles in her routine again. By that time she's almost off to her dad's.
When I first put her to bed she shouts through (I'm in the room next door) "I don't know how to sleep", "I can't do it". Before she's even shut her eyes!
Dad lives with his parents and I'm sure they are molly coddling her all night, but they deny it and say they stick to my bedroom routine. I don't believe a word
They've always pandered to everything she's wanted through night and there's nothing I can do, but they get all the cuddles and I get all the tantrums!