【寝違えた】I spelt on my neck funny.

Ouch!!!!

When I got up this morning, I couldn't move my neck properly. 

I spelt on my neck funny.(寝違えた)

 I am sharing my "futon" mattress with daughters.
Not a daughter but daughters.
8 yrs old and 4 yrs old. Both are rather bigger than the average.
Although we have 3 regular sized futon mattresses for 4, we share one for 3 people.
I don't know why. They both are coming on my futon while sleeping.
Then I move to other futon during midnight.
Sometimes I have to sleep in the middle of two futon. Both futon's height are little different.
This is the reason I slept wrong.
This is the reason I think I am so beloved by my family.