Category: Everyday Science | Last updated: 2026-09-18
According to the National Sleep Foundation, how many hours of sleep are generally recommended for healthy adults (18-64 years) per night?
A) 5-6 hours
B) 7-9 hours
C) 9-10 hours
D) 10-12 hours
Explanation
Most health organizations, including the National Sleep Foundation, recommend 7-9 hours of sleep per night for adults aged 18-64 to maintain optimal health and cognitive function.