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This explain why all of my three children WOULD NOT sleep on their backs. I know we are not supposed to let them sleep on their tummies any more but none of mine would have slept at all if I had MADE them lie on their backs! They would be on their tummies, head to one side and their bottoms in the air with their legs tucked up underneath them.
1 year, 8 months ago on How Your Baby’s Body is Adapted to Being Carried