So about 10-20 minutes after becoming vertical for the past two mornings, I have been inflicted with the sort of sneezing that is discontent to be called merely sneezing, and would prefer something more appropriate, such as "nasal vomiting", which is about where it's at -- the contents of the sinuses decide that they are going OUT, in a series of uncontrollable and messy spasms, and it doesn't stop until they decide that they're empty enough, if then.
That was with the window closed for most of the night, and with having taken allergy meds before crashing. Yesterday the window was open.
I will be so, so very glad when the cooling system is running, because my body now says, "It's too hot to sleep! Why are we not cooler?" and refuses to sleep until I soak my feet and/or put the fan on.