Explanation:
The riddle’s answer is a horse because horses wear metal horseshoes permanently attached to their hooves. These “shoes” are nailed in place by a farrier and stay on day and night, even when the horse lies down to sleep. Unlike human shoes, horseshoes aren’t removed daily; they’re replaced only when worn out. This unique feature of horses—that they “go to bed” with their shoes on—makes them the perfect answer to the riddle.
