ID 158662022 © Nikkizalewski | Megapixl.com
Sharing is not just caring, it's also about giving credit - add this image to your page and give credit to the talented photographer who captured it.:
anxiety background beneath circadian clock concept copy cycle dark deep deprivation disorder face fatigue fluctuate get health help insomnia insomniac instead medicine midnight nap narcolepsy natural need night noise now pattern problem quiet relax rem research sky sleep sleepiness sleepless sleepy slumber solution some somnolence space spacen therapy time transparent treatment try wake wakeful wakefulness winks word words worry