Why can't I sleep at night?

There are multiple factors to sleep. Do you watch phone/computer/tv screens before bed? They emit blue light which prevents your brain from producing melatonin (the sleep hormone). Are you stressed? Thinking about worries can keep you awake. Do you do other things in bed besides sleep? If you eat, watch tv, play games in bed that can mess with your brain! It doesn't associate bed with sleep, it thinks of bed with activities. Are you doing enough during the day? It's harder to sleep if you aren't tired. There's even more to it than this. Look online for tips and tricks to sleep at night. I use low-dose melatonin to sleep, it helps me so much and isn't a habit forming drug; it's just melatonin your brain already makes. My professor at U.C. Berkeley suggested it. Changed my life. But always try to change habits first, because it's cheaper that way. =)

There are many reasons why, so I'm just going to talk about the ones that usually cause me to be unable to fall asleep. 1) I am not tired enough. This happens sometimes - I'll be in bed an feel wide awake. What I usually do is get up and do something relaxing, like coloring or listening to music for about 15 minutes before going back to bed. 2) I can't get my brain to shut up. This also happens a LOT - my thoughts will run a billion miles an hour and I'll be absolutely unable to sleep. What usually helps me then is to get up, find a piece of paper and write down all the thoughts that are bothering me, knowing I can deal with them tomorrow. It's not easy, but it usually does help!

Well, it could be many things. Could be too much coffee, or your mind is thinking, or it could be stress, could be from pain. Mamy many things could make you not sleep at night. could be too much alcohol.

You suffer from insomnia, depression, or simply be addicted to your phone. Try to develop a bedtime routine. If you still have trouble, see a professional so you can be well rested and happy!

Worry about things. Having depression and sad about things. To wound up from ADHD. Having flashbacks from the past .

I drank a cup of coffee after 1pm today and I'm really sensitive to caffeine! That combined with using my phone in bed was not a good idea!

Any number of factors can be the reason, you may be exposed to too much light of a certain spectrum via a screen etc. That inhibits melatonin production (the sleeping hormone), if you are a teenager puberty may cause a condition called Circadian Rhythm Disorder which messes up your sleeping pattern or if you have a lot on your mind you may need to deal with it before you can have a good night's sleep.

I’m having same trouble ..will sleep 3/4 nights six hrs and 2/3 hrs on nights in between..mine is anxiety and my brain overthinking..I try to write everyday what’s happening stressing me out etc

There are many possibilities. You could be napping too much during the day, drinking too much caffeine, or you may genuinely have insomnia.

Usually because you have something nagging at the back of your mind. You need to try to confront your feelings and deal with your emotions to get mental peace.