Hi there, I've posted elsewhere about the sleep woes we're having with my 7mo but to cut a long story short, I was wondering what age you put your baby in the bigger Sleepyhead? He's in the deluxe at the moment but I think it is restricting his movement and waking him up.
However Sleepyhead now advise not using the Grand until 9 months - however they don't explicitly say it is dangerous to use it for younger babies, just not recommended. I think because the sides are softer the smaller babies could end up burying their faces in it but they also state it is air permeable...