This practice can be extremely dangerous as the heat generated cannot dissipate and the charger will become hotter and hotter. The likely result is that the pillow, covers, or your bed will catch fire. This places the sleeper, as well as everyone else in the home, in great danger without even realizing it.
Keep your cell phone at least 3 feet away from your bed to limit radio frequency exposure. Turn your cell phone off before you go to bed (if you don't rely on your phone's alarm clock)
Mistake: Sleeping with your cell phone
Cell phones pump out electromagnetic radiation whenever they're on - which means sleeping with one nearby boosts your exposure all night long. What to do? Put the phone on "airplane mode" (which shuts down the transceiver) or turn it off.
It's perfectly safe to be in close proximity to a wireless charger, so you can continue to charge your phone on your nightstand overnight, or on your desk all day at work.
Chargers do not emit any harmful radiation or particulate that can harm you. You could sit next to one for 30 years non stop and have no real issues.
Android phone manufacturers, including Samsung, say the same. “Do not leave your phone connected to the charger for long periods of time or overnight." Huawei says, "Keeping your battery level as close to the middle (30% to 70%) as possible can effectively prolong the battery life."
Cell phone and screen use have been directly linked to disruptions of your circadian rhythm or natural sleep-wake cycle. As noted in research on children and adolescents, the blue light emitted by cell phones inhibits the production of melatonin, the hormone that makes you drowsy.
Leaving a phone on wireless charging overnight does not produce any safety issues, but it may deteriorate the battery's health in the long run. You can prevent the potential damage by simply closing background operations of the unnecessary applications and keeping the phone in a well-ventilated space.
Charging overnight is not a danger to your battery in and of itself. However, temperature is a real concern. One of the most damaging things your battery can experience is extreme heat or extreme cold. Apple has publicly stated that temperatures above 35 degrees Celsius can cause permanent damage to battery life.
Even though there is no risk of overcharging with the use of a high quality charger, the battery should not remain connected to the charger for more than 24 hours.
This practice can be extremely dangerous as the heat generated cannot dissipate and the charger will become hotter and hotter. The likely result is that the pillow, covers, or your bed will catch fire. This places the sleeper, as well as everyone else in the home, in great danger without even realizing it.
Your phone should be left outside the bedroom when you decide to sleep. However, if you rely on your phone as an alarm clock, place it somewhere as far as possible from the bed, and turn off any notifications unrelated to the alarm clock.
Blue light is harmful to your eyes.
The blue light emitted by your cell phone screen restrains the production of melatonin, the hormone that controls your sleep-wake cycle (aka circadian rhythm). This makes it even more difficult to fall asleep and wake up the next day.
Tip of the week: Putting your phone in airplane mode when you go to bed can improve your quality of sleep. You can still use your alarm, but you won't receive any calls or texts during the night.
We understand you're falling asleep during a FaceTime call, and want to confirm if this is negatively impacting your iPhone in any way. We're happy to help. Naturally your battery would be affected by the extended usage but that's really the most negative impact it would cause on your device.
The batteries in iPhones aren't like old rechargeable. They don't develop a memory. Charge it whenever you like and to whatever capacity you like. The only thing that's "bad" for it is allowing it to discharge completely.
Avoid charging beyond 80 percent
Contrary to popular belief, you should not charge your iPhone 100 percent. While this used to work for older batteries, it is not ideal for lithium-ion batteries. They do not come with memory to calibrate, as such; they'll overheat once they hit 100 percent.
As it stops automatically at 100% you can't overcharge it doing this. You thus start the day with a fully charged phone. And, if you configure the phone for automatic backup using iTunes or iCloud, the phone will back up every night when it has a WiFi connection and is asleep.
To extend the lifespan of your battery, if the battery gets too warm, software might limit charging above 80 percent. Your iPhone will charge again when the temperature drops.
You cannot overcharge an iPhone.
Wet hair when sleeping also can cause damage to follicles and result in hair breakage. Skin conditions: Hair follicles under the skin clogged up with sebum or oil can result in acne. As wet hair harbors bacteria, this can also impact the growth of bacteria in the pores.
In skipping these states and checking your phone right after waking up you are priming your brain for distraction. Seeing or reading something negative first thing in the morning can trigger your stress response and put you on edge for the rest of the day.
Most people tend to hold their cell phones only about 8 inches from their faces. Not good. Try holding yours at least 16 to 18 inches away from your eyes to give your eyes a break. It might feel funny at first but shouldn't take long to get used to.