The answer to that is a resounding yes. All those gadgets that we tend to use emit more light in the blue end of the visible spectrum, which is proven to have an effect on sleep pattern. So is there a way around? thankfully there are a few apps that apply a filter on the overall display and reduce blue light.

Blue light filters are must have apps for late night reading and texting. Of course you can turn them off in the mornings when the light levels do not matter. We’ve been using Bluelight Filter for months now and heartily recommend it as a simple addon to protect your eyes. Think of them as the digital equivalent of wearing sunglasses. – TheAppCurators

bluelight
Bluelight Filter
Developer: Hardy-infinity
Category: Health & Fitness
Google Play Rating: 4.3
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Google Play Description

☆ Avoid Eye Strain

Bluelight from your smartphone or tablet causes strain on your eyes and keeps you from falling asleep at night.
This app adjusts your screen color to reduce the blue light and helps your eyes to relax, making it easier for you to fall asleep.
☆ Features
▽ Free Screen Filter App to Protect Your Eyes
You can reduce the strain on your eyes easily.
It’s simple but effective!
All you have to do is launch this app.
▽ Screen Filter with Natural Color
This app’s filter has a natural color so you can read news, emails and websites clearly.
This app doesn’t dim the screen but adjusts the screen color to reduce blue light which causes strain on your eyes.
▽ Easy Operation
It’s easy to turn on or off with just one tap.
You can adjust the opacity of the filter.
Choose between 5 different filter colors.
▽ Turn On or Off Quickly and Easily
You can choose to show or hide a filter icon in the status bar, making it easy to tweak the settings at any time.
▽ Startup Automatically
You can choose whether or not the filter launches on startup.
▽ Eye Care in your Smartphone or Tablet
This app works on most smartphones such as Samsung Galaxy, HTC ONE Xperia and so on. It also works on tablets such as Nexus 7, Nexus 10, ASUS MeMO Pad, Acer ICONIA and more!
▽ Simple App
This app doesn`t use your battery except when setting up the filter, since it only adjusts the color temperature and the lux the memory usage is low too.