Not Getting Enough Sleep: What You Really Need
Tony's endocrinologist asked about his sleep before she asked about his diet, and that told me something. Turns out a bad night doesn't just make you tired, it messes with blood sugar the next day too. I went and actually looked into what "enough sleep" means at our age, at the grandkids' age, at everyone's age in this house, and it's not the same number for everybody. Here's what I found.
How much sleep you actually need
This isn't one number for the whole family. What's normal for the grandkids is way off from what Tony and I need, and both are different from what the teenagers in the house are fighting us on.
School-age kids
Ages 6-12
9-12 hrs
Teens
Ages 13-18
8-10 hrs
Working-age adults
Ages 18-64
7-9 hrs
Adults 65 and up
Where Tony and I live now
7-8 hrs
The four stages your body cycles through
Sleep isn't one flat state, it's a loop your body runs four to six times a night. Cutting sleep short doesn't just mean less of it, it means you're skipping the later stages where the real repair work happens.
Are you actually running a sleep deficit
This isn't about one rough night, everybody has those. It's about what happens when short nights become the pattern instead of the exception.
You wake up without a fight, you're not white-knuckling the afternoon, and weekends don't need to be a recovery project.
Manageable, but it adds up. This is the range where a lot of people live without noticing, and it's the easiest one to fix.
Concentration slips, patience gets short, and for Tony this is exactly when his blood sugar numbers start drifting the wrong way.
This is where the real risk lives, for heart health, for blood sugar, for balance and falls. Worth a real conversation with a doctor, not just more coffee.
Common sleep mistakes
None of these are exotic. They're just habits that feel harmless in the moment and quietly cost you sleep every single night.
Caffeine has a long half-life, that 2pm coffee is still partly in your system at bedtime.
The light keeps your brain thinking it's daytime, and scrolling keeps it thinking it has work to do.
A wildly different wake time on weekends confuses your body clock more than it helps.
Alcohol can knock you out early, then wakes you up a few hours in and wrecks the deep and REM stages.
Past 30 minutes, a nap starts eating into how tired you'll actually feel at bedtime.
Your body needs to drop its core temperature to fall asleep, a hot room fights that every time.