Just as you’re drifting off to a peaceful sleep, you’re rudely awoken by a sudden jolt and panic.
Although it really felt like you were plummeting to your death, you accept it was just a figment of your imagination.
That terrifying feeling — usually accompanied by twitching in the legs and arms — is called a ‘hypnagogic jerk’.
But, did you know there’s ways you can potentially prevent these random nocturnal body hiccups?
Sleep starts can contribute to sleep deprivation and in turn, this can cause even more sleep starts
Track sleep trends
Anyone can experience a hypnagogic jerk, also commonly known as ‘hypnic jerk’ or ‘sleep starts’. Bedding company Simba found more than two-thirds of Brits surveyed have experienced the disturbance.
It happens during the transitional stage between wakefulness and sleep — when the heart rate decreases, breathing slows down and the muscles relax.
Medically, it is classified as myoclonus — a brief involuntary twitching or jerking of a muscle group or group of muscles.
‘Hypnic jerks can affect the whole body or just the legs,’ said Lisa Artis, deputy chief executive officer at The Sleep Charity. ‘At the same time you may also feel like you’re falling, you may experience a loud noise or a flash of light.’
Even though they are ‘perfectly normal’, tracking when they happen could reveal what is causing them, she said.
Ms Artis recommends that people note down the dates when sleep starts occur in a phone or diary, along with whether they have had alcohol, coffee or stimulating drugs — all of which can increase the chance of them happening.
Also, noting stress levels and types and times of exercise can help flush out any patterns and triggers, according to the sleep charity.
Relax
People can become stressed because of sleep starts.
This can contribute to sleep deprivation and, in turn, cause even more to occur.
‘It’s really important to ensure that you get good quality sleep as fatigue or sleep deprivation may also increase your risk of hypnic jerks,’ said Ms Artis.
So, if your mind is racing as it hits the pillow, try and breathe and let go of your negative thoughts from the day and invite peaceful and pleasant images in, she advises.
This can help soothe the mind and relax the body, helping with drifting off to sleep.
On top of this, relaxing the body may ease that transition into sleep, making your muscles less likely to twitch.
Don’t exercise close to bed time
Exercising too close to hitting the sack can increase the risk of sleep starts, it is thought.
Winding down and aiming to finish your workout at least two to three hours before going to bed will help you drift off to sleep, according to Ms Artis.
But how hard you train can also play a part in sleep.
You may think working hard at the gym will just make you tired.
However, if your evening routine involves things like running, high intensity interval training (HIIT), bodypump or bodycombat, it’s going to be difficult for your body and muscles to slow down and relax, since it puts them under more stress.
Moving your exercise routine to the morning can help with this, but so can doing lower impact sessions in the evening.
Swimming, walking, pilates, or yoga — which focus on breathing and stretching — may help you relax and prevent sleep starts, the charity says.
Winding down and aiming to finish your work outs at least two to three hours before going to bed will help you drift off to sleep, according to The Sleep Charity
Block out sunlight
Getting good quality sleep is vital for your body to function normally and prevent you from experiencing these night jerks, experts also think.
Ensuring the bedroom is cool, dark and quiet before bed helps you get good quality sleep, according to the sleep charity.
Heat, light and noise can impact our ability to nod off and increase the chances of waking during the night and experiencing sleep starts.
This might mean changing up your duvet between seasons to avoid overheating and investing in black-out curtains or blinds during the summer months when it gets lighter earlier, the sleep charity says.
Switch to decaf
Stimulants can interfere with your sleep and increase the frequency of sleep starts.
Switching to decaf eight hours before you go to bed can help you avoid hypnagogic jerks, according to the sleep charity.
Drinking low or alcohol free drinks in this window can also help stop night time waking’s and sleep starts, experts say.
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