DD (4 mths) has started waking up at 4.30am. We use a grobag 2.5 tog but her hands are always icy in the morning so I'm wondering if maybe that's waking her. Does anyone have any suggestions? I still have scratch mitts but they never stay on for long. She kicks off blankets almost as soon as I put them on and will never leave her hands under no matter how cold - she likes to be able to move around.