TOO MUCH SLEEP

Is that even a thing? I asked myself that question after the night I slept more than eleven hours. First, I looked up what’s typical.

The Seven Sleepers, according to medieval Christian and Islamic legend, slept in a cave for 300 years to escape religious purges. (Illustration from the Menologian of Basil II)

Recommended Sleep by Age

The following table is from the CDC.

Age GroupAge RangeRecommended Hours of Sleep
Infant4-12 months12-16 hours (including naps)
Toddler1-2 years11-14 hours (including naps)
Preschool3-5 years10-13 hours (including naps)
School-Age6-12 years9-12 hours
Teen13-18 years8-10 hours
Adult18-60 years7 or more
61-64 years7-9 hours
65+ years7-8 hours

So, either I’m back to my middle school years, or I’m beyond the pale. No doubt the latter, but is that a bad thing?

Why Do People Sleep Too Much?

Reportedly, Albert Einstein regularly slept ten hours every night and napped frequently.

For people who suffer from hypersomnia, oversleeping is actually a medical disorder. The condition causes people to suffer from extreme
sleepiness throughout the day, which is not usually relieved by napping. It also causes them to sleep for unusually long periods of time at night. Many people with hypersomnia experience symptoms of anxiety, low energy, and memory problems as a result of their almost constant need for sleep.

Author Anne Rice suffered for years with obstructive sleep apnea, which may have inspired her interest and affinity in other creatures of the night, such as vampires.

Obstructive sleep apnea occurs when something blocks part or all of your upper airway while you sleep. Your diaphragm and chest muscles have to work harder to open your airway and pull air into your lungs. Your breath can become very shallow, or you may even stop breathing briefly. You usually start to breathe again with a loud gasp, snort, or body jerk. You may not sleep well, but you probably won’t even know that it’s happening. This condition can also lower the flow of oxygen to your organs and cause uneven heart rhythms.

Calvin Coolidge took a nap nearly every day in addition to sleeping ten or eleven hours every night.

Not everyone who oversleeps has a medical sleep disorder. Other possible causes of oversleeping include:

  • Alcohol
  • Prescription medications
  • Jet lag
  • Illness, such as a cold or flu
  • Extreme athletic exertion
  • Depression

Besides the conditions mentioned above, too much sleep — as well as not enough sleep — raises the risk of: heart disease, diabetes, depression, and obesity in adults age 45 and older. Any of these can carry an increased risk of death.

Sleeping Preference

Mariah Carey credits her fantastic singing voice to her habit of sleeping 15 hours every night.

And then there are people who simply want to sleep a lot. Individual sleep needs vary as widely as individual dietary needs, but “anything worth doing is worth overdoing” (as Mick Jagger, Ayn Rand, or possibly G. K. Chesterton famously said).

If long-term risks are too distant to motivate stopping, consider this: if you sleep more than you need to, you’re probably going to wake up from a later sleep cycle, meaning you’ll feel groggy and tired even though you’ve slept more. Research bears out the connection between too much sleep and too little energy.

LeBron James reports sleeping twelve hours a night for his best athletic performance.

According to Harvard Health, it appears that any significant deviation from normal sleep patterns can upset the body’s rhythms and increase daytime fatigue. The best solution is to figure out how many hours of sleep are right for you and then stick with it — even on weekends, vacations, and holidays.

The “Sleeping Beauty of Oknö” Karolina Olsson reportedly fell asleep in 1876, aged 14, and didn’t wake up until 1908, aged 46. (She may have been in a coma, kept unconscious by her parents, suffering from a head injury, or simply faking, but medical reporting in Sweden at the time never seemed to reach a definitive conclusion.)

How to Manage and Treat Chronic Oversleeping

After an overseer gave her a traumatic head injury, Harriet Tubman suffered from epilepsy and bouts of hypersomnia for the rest of her life.

But What If It’s Only Occasional?

During a golf tournament, Michelle Wie once slept more than sixteen hours. She regularly sleeps ten hours a night but prefers to get twelve hours or more.

According to the Cleveland Clinic, when you’re sleep drunk, your brain doesn’t make the transition to wakefulness. Your conscious mind isn’t fully awake, but your body can get up, walk, and talk. “People who have confusional arousal might act confused or have trouble speaking,” says Dr. Martinez-Gonzalez. “They might appear to be drunk, but they’re not.”

The CDC discusses sleep inertia. It is a temporary disorientation and decline in performance and/or mood after awakening from sleep.

People with sleep inertia can show slower reaction time, poorer short-term memory, and slower speeds of thinking, reasoning, remembering, and learning.

Bottom Line: Inviting as a warm bed can be on a winter night, as comfortable as it feels during a pounding rain, as luxurious as it can feel to just not get up, consider the price you may pay.

Robert Douglas Spadden (center) slept through the sinking of the Titanic when he was six years old. He woke briefly while being carried to a lifeboat, but his nurse told him they were going to look at the stars. So he went back to sleep.