Sleep Tight -

"I am the Sleep Fairy," replied the fairy, with a gentle smile. "I've been sent to help you sleep tight."

If you want actual deep, high-quality sleep: Sleep Tight

Before the invention of the box spring and the memory foam mattress, average people slept on "rope beds." These consisted of a wooden frame with a network of rope crisscrossed in place of a box spring. A straw or feather mattress would sit on top. Over time, the ropes would stretch and sag, leading to a terrible backache. The nightly ritual involved using a wooden "bed key" (a type of wrench) to tighten the ropes. A tight rope meant a firm, level sleeping surface. Thus, to "sleep tight" literally meant you had a well-maintained bed that wouldn't collapse in the middle of the night. "I am the Sleep Fairy," replied the fairy,

: Some versions include activity logs to monitor sleep habits and quality over time. Over time, the ropes would stretch and sag,