I asked Fern to tell him that he should not bite my cheeks or my chin when he sniffs at me at night. He has taken to sniffing me before he sleeps or get ready for his night snuggle. It could be pretty painful as well.
He had this to say about it:
T said then how would u know he loves you? (if not bite)? i said kiss kiss and sniff sniff are ok and that way Mummy knows. He said you smell good he feels like biting (love bite: happens a lot in cats to their humans ).
I think he may be smelling treats as I usually give them treats before bed time.