If you want to fall asleep without any problems, pay attention to these advices: Do not drink plenty of liquid before bedtime because you will often go to the toilet.
Put you phone and laptop away from you, because they will make you lose a precious sleeping time. Your brain needs a break from these devices, in order to function properly.
Do not hold your phone close to you while you sleep because it radiates. This also applies for other electronic devices, such as computers, tablets and many others.
Sleep on a quality mattress and change your bedding regularly.
Do not eat heavy food before bedtime. It is best not to eat anything 2 hours before bedtime, and if you are hungry, you can eat something light like cheese.
Sleep in the right position or you will wake up with pain. Sleep on a harder bed in order to prevent back problems or get rid of such pains.
Do not drink coffee just before bedtime because it contains caffeine. Keep in mind that the brain needs to rest and in order for it to function properly you need to sleep at least 8 hours.