Y'know what? Fire and Light spirits sleeping patterns
Agnimon: Has to sleep naked and without blankets or else he will overheat. A living furnace here peeps. Can sleep whenever and anywhere he wants to. Doesn't actually sleep that much, he'll rather take power naps to help his tiredness.
Virtramon: Sleeps with one eye open. Curls up like a dog and sometimes nibbles on his tail. Rarely sleeps due to paranoia.
Ardhamon: Does not sleep, what is sleep anyway? If does sleep, curls up and wears nothing and has no blanket. Also prefers to sleep outside.
EmperorGreymon: Sleeping upon a hill is the great and mighty emperor of greymons. He slumbers for thousands of years until the day he is awoken for combat and when that day comes, he will be cranky.
Wolfmon: Only really wears underwear and nothing more. He sleeps on his side or back. Snores a bit. He could sleep while sitting but why would he?
Garmmon: Sleeps with all limbs out like a fucking idiot.
Beowolfmon: Curls up into a nice fluffy ball. Sleep talks a lot and his tail will sometimes wag. Wears like loose sweatpants.
MagnaGarurumon: MagnaGarurumon does not sleep. This is not a joke, this thing only takes 1 hour power naps. Lays flat back front like a plank of wood.