- Researchers say people over age 60 who took afternoon naps performed better on cognitive tests than people who didn’t nap.
- Experts say afternoon naps benefit people of any age by resting the brain and clearing out our jumble of daily thoughts.
- One expert said the best nap is 10 to 30 minutes taken between 1 and 3 p.m.
- Another expert warned that longer naps might be a sign that a person is not getting adequate nighttime sleep.
The afternoon nap gets a bad rap.
Some see a siesta as a sign of laziness, low energy, or even illness.
But a new study suggests that afternoon sleep may make you mentally sharper if you’re over age 60.
Older adults who took afternoon naps scored higher on a cognitive test than those who didn’t nap, according to researchers.
The study, published in the journal General Psychiatry, looked at both physical and cognitive health among 2,214 people over age 60 residing in large cities in China.
Of these, 1,534 took regular afternoon naps while 680 did not.
The observational study found that the nappers scored “significantly higher” on the Mini Mental State Exam (MMSE), a standardized dementia screening test that includes assessments of visuospatial skills, attention span, problem-solving, working memory, locational awareness, and verbal fluency.
The nappers performed particularly well in the latter three categories, according to the study led by Dr. Lin Sun of the Alzheimer’s Disease and Related Disorders Center at Shanghai Mental Health Center and Shanghai Jiao Tong University.
“Sleep has a lot to do with your capacity to learn,” Davina Ramkissoon, wellbeing director of Zevo Health, told Healthline. “Napping helps your brain recover from burnout or overload of information. While taking naps, your brain clears out unnecessary information out of your brain’s temporary storage areas to prepare it for the new information to be absorbed.”
The study group — nappers and non-nappers alike — got an average of 6.5 hours of sleep nightly.
Afternoon naps were defined as getting at least 5 consecutive minutes of sleep but no more than 2 hours, anytime after lunch.
Nappers were asked how often they napped during a typical week. Replies ranged from once a week to daily.
One weakness of the study was that researchers did not ask participants how long they napped or at what specific time of day.
“An ideal, healthy nap should be taken in the afternoon between 1 p.m. and 3 p.m. and last anywhere from 10 to 30 minutes,” Katherine Hall, a sleep coach at Somnus, a guided sleep therapy program, told Healthline. “If you are able to get a catnap in the afternoon, there are some great benefits to be had. The evidence suggests that napping is great for improving mood, energy, and productivity while reducing anxiety and physical and mental tension.”
A short afternoon nap can leave you feeling alert and ready to tackle the rest of the day without feelings of “sleep inertia” — the confused, disoriented, and grogginess you can feel upon waking, she added.
“If you’re able to nap for a slightly longer period of time, say 60 minutes, evidence suggests that napping for this length can actually aid your learning,” Hall said. “As during this longer nap, your brain will start to transfer memories from your temporary holding facility — the hippocampus — to their permanent home, the cortex.”