Dr. Ashley LucasPhD Nutritionist & Dietitian | Owner & Founder PHD Weight Loss & Dr. Ashley Wellness

Want Better Sleep & Fat Loss? Follow the 10-3-2-1-0 Rule

13 Aug 2025 · 1 min

Watch on YouTube

0:38

Short instructional segment from a YouTube video (Dr. Ashley Lucas) presenting the "10-3-2-1-0" sleep rule: 10 hours before bed—stop caffeine; 3 hours—stop eating (to avoid disrupting deep sleep by increased metabolic rate); 2 hours—no work; 1 hour—no screens; 0—no hitting the snooze button in the morning. The speaker links these behavioral cutoffs to improved sleep quality and fat-loss-friendly physiology.

Chapters

Are you struggling to fall asleep in general? Let me give you this sleep rule. 10, 3, 2, 1, 0. 10 hours before bed, no more caffeine. Three hours before bed, no more food. When we eat close to bedtime, it disrupts deep sleep. It increases our metabolic rate, which is not a good thing because we don't want our body focused on metabolizing food. We want it focused on detoxing. And then two hours before bed is no more work, One hour before bed is no more screens, and zero is the number of times you hit the snooze button in the morning.