A visit to my mother-in-law

will involve eating delicious food, exchanging family news ... and bedding information. My husband's mother worries that we might not be warm enough ... or too warm. After explaining how the bedroom windows work (open/closed to varying degrees) she tells us that she has made up the bed with 'one of those aerosol blankets'.  

I imagine that we will spend the night in a giant nest of cuckoo spit.