A sleep study explains to a parent whether her child’s sleep difficulties are medical or psychological, reports Tablet.

My 4-year-old daughter, Zelda, was pinned down in a hospital cot that looked like a cage, her sleeping face wrapped in bandages securing electrodes. Her quivering body lay next to Shmutzy, her pink stuffed cat, nearly her size.

This is just a sleep study, I consoled myself, yet no one had warned me about all the circuitry.

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