Not sure if this applies, but it rang true for me when i was told it. Sometimes, the whole wiggling at sleeptime, loosening off wraps etc can be all part of going to sleep. When i go to bed, i fluff my dooner, bang my pillow, organise the clock so its not in my eyes but i can see it if i want to..... When that is all done, then i can relax and go off to sleep. For some kids, its the same, they need the wiggling and adjusting first and then they can settle in for sleep.