@Alireza-iran perhaps you can maximise that little bit of time you have. Find the fun and relaxation in being with your friends/family so you dont have to give each of those their own time. This is possible by just being in that moment, appreciating it and forgetting all the other things that require your time. Enjoy it as if you have all the time in the world.
And please sir, try aim for 6 hours. 5 is below the recommended minimum. Unless of course you are fully functional and not hindering your performs in any way of life with just 5 hours of sleep.
