Are you more likely to get sleepy when the air is cold or warm?

help settle a debate at work..Are you more likely to get sleepy when the air is cold or warm?
warm. That's why it's a good idea to take a hot bath before bed time. If you are getting sleepy when it's cold, your freezing to death.
warm
you shiver if too cold
warm. what side are you on?
warm it makes it easier for the blood to circulate
I would think warm because you get all nice and warm and cozy and settle down for a nap.
Warm
Especially if you are sitting.
If your cold you shiver and that warms the body.
I get more tired when it's warm.
When you get cold your blood doesn't thin.
cold for sure.
the cold makes me tired. i have a hard time sleeping when its warm in my room
Warm. It makes u so dull and lazy. Makes u drowsy for sure. Being in this part of southeast asia, hun u have no idea how warm it gets here. It literally drains out all energy from u and makes ur eyes droop, u just want to go to bed and sleep.. Of course the sleep isnt a cozy one like u sleep when the air is cold..