Common Sleep Myths: What Is True and What Is Not?
Sleep advice is full of confident one-liners. Some are right, some are half right and a few are quietly harmful. Here are common sleep myths and what the evidence actually says.
Key takeaways
- There is no one-size-fits-all number, but most adults need seven or more hours.
- Alcohol, long weekend lie-ins and lying in bed awake do not give you quality rest.
- Check claims against reputable sleep organisations.
Myth: Everyone needs exactly eight hours
Eight is a handy average, but needs vary. Adults generally need seven or more hours, and some feel best at eight or nine. The way to find yours is how you feel and function, not a number. See how much sleep you need.
Myth: You can catch up on weekends
A lie-in feels great and does reduce sleepiness, but it does not fully reverse a week of short sleep, and it makes your schedule less regular. Gradual recovery works better; see fix sleep debt.
Myth: A nightcap helps you sleep
Alcohol may help you drop off but fragments sleep and suppresses REM later in the night. More in alcohol and sleep.
Myth: Snoring is harmless
Often it is, but loud snoring with gasping or pauses can signal sleep apnea, which needs treatment.
Myth: Napping is always bad
Short naps early in the day are fine and often helpful. Long, late naps can interfere with night sleep. See napping guide.
Myth: Older adults need less sleep
Older adults need slightly less, about seven to eight hours. Poor sleep is not an inevitable part of ageing; see sleep and aging.
Myth: Lying in bed with your eyes closed is as good as sleep
Resting is relaxing but does not give the same benefits as sleep. If you are awake and frustrated, leave bed for a short while and come back when sleepy.
Myth: Counting sheep works
There is little evidence for it. A calm, absorbing mental task, such as imagining a peaceful place, tends to work better than repetitive counting.
Frequently asked questions
Where should I get sleep advice?
Start with the American Academy of Sleep Medicine, National Sleep Foundation, CDC and your own doctor. Be cautious with products that promise miracle results.
References and further reading: American Academy of Sleep Medicine public education resources; Watson et al., 2015, Sleep.