Endless videos and games instead of sleep: This widespread "bedtime procrastination" on your smartphone can be overcome with just a few small behavioral changes.

Going to bed at the same time daily — even on weekends — may protect your health more than how long you sleep. A midday nap is more beneficial than sleeping in.

Your coffee’s timing impacts both happiness and rest. Morning caffeine sparks energy and positivity, while late‑day cups can quietly undermine deep sleep.