At bedtime, talking about his six-foot-long plush snake from IKEA, creatively named by me:
M: Oh, do you see Mr. Snake all curled up on the floor? He is getting ready for bed.
me: Yeah, he's so sleepy, he's asleep.
M: No, he is just going like this (blinks slowly), he is just blinking, he is almost asleep.
me: Oh, he's almost asleep.
M: Yeah. Hey mommy?
M: Sometimes I tell Mr. Snake jokes and he laughs like this: sss-sss-sss-sss-ss.