ROYAL OAK, Mich. — Volunteers gripping flashlights waved them high above their heads when the clock struck 8 p.m., shining beams through the frigid night sky — and into the hospital's windows.
Exactly 10 minutes later, the enthusiastic crowd, still holding their flashlights aloft, in unison hollered ''sweet dreams'' toward children in the hospital several stories above them.
The nightly Moonbeams for Sweet Dreams tradition is again lighting up the night outside Corewell Health Children's hospital in Royal Oak in suburban Detroit.
For 10 minutes each evening, volunteers standing outside the hospital shine flashlights toward the pediatric rooms above, delivering a message of hope and joy. The kids return the sentiment with their own lights, which they shine toward those below.
''To be stuck in the hospital and feel like the world is moving on without you outside feels a little bit isolating, a little lonely, feels like maybe you've been forgotten in the hustle and bustle of the holiday season,'' said Amanda Lefkof, a child life specialist at Corewell.
Among the children in the hospital is 4-year-old Zoe Hostetter, who is undergoing chemotherapy treatments. On a recent night, she shone her own flashlight toward the bundled-up well-wishers below with her grandfather, Tim Schuele, by her side.
''It's just a big group of people that they don't know, but they see the love being sent by the lights,'' he said. ''They're here kind of by themselves or with just close family and that's it for days."
On these nights, though, the children are far from alone.