What's the red light for? Does it stay on all night? They don't need it.
Chickens go through sleep cycles and can wake up and fall asleep again, wake up, preen themselves, sleep again, wake up, shift position, sleep again etc. Most animals don't sleep like us humans - zonk out and lie dead for 8 hours. That's a very human luxury, borne out of the privileged position we have in the animal kingdom - capable of securing ourselves in fortresses where nothing is going to come and eat us, so we don't need to sleep with one eye open and can afford to be dead for 8 hours straight every night. Chickens are prey. They sleep lightly and sporadically. If your chickens seem rested in the morning and go about their business looking healthy, then there's nothing to worry about.
P.S. I have a camera in the coop with night vision and spy on them after they go to sleep. I've checked on them at all kinds of hours out of curiosity, including in the middle of the (human) night. It's rare that they're all perfectly still and sleeping. There's always some kind of little movements, somebody is adjusting, preening or whatever. But they're fine in the morning.
