Does your thyroid level affect your sleep?

It varies. Someone with high thyroid levels might have insomnia, so that they would be able to sleep for a short time, and might be very restless in their sleep. But they may feel that they need less sleep, too. Low thyroid levels can make people want more sleep than usual. Low thyroid levels can also raise the risk for sleep apnea with loud snoring, brief periods of no breathing, and poor sleep quality.
Can... Overactive, can't sleep underactive, sleep too much normal thyroid blood test, and sleep problem, look for other causes.