Sleeping bags don't come with pillows, most people bring one when they go camping. Whether the sleeping bag would make noise or not depends whether it's made of cotton (silent) or nylon (can be noisy). But if she's just turning her head, her head wouldn't really be rubbing against the sleeping bag, it'd be rubbing against the pillow. I dunno, I think you should find some other way for them to realize they are both awake.
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"It's a magical world, Hobbes ol' buddy...let's go exploring!" - Calvin
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