Oh another one!
Not my partner, but my sister (16). Until she was about 5, she was always patted to sleep (gentle, rhythmic pats on her side/back).
She still comes into our bed when she's feeling unwell sometimes and as she's dozing off I notice she absentmindedly pats herself! I'm not sure if she does it all the time,or when she's unwell as a comfort thing, but it's so damn cute!