Closed lid macbook air unresponsive restart

Goodmorning,

i have this annoying issue on my macbook air 2018. If i leave my lid closed for more than 4 hours when i reopen my macbook the screen doesn't turn on automatically but my trackpad still working cause i can hear the ''click'' sound.

I made some tests to see when i can turn the operative system on:

1) if i open the lid and i don't touch anything the macbook doesn't turn on

2) if i open the lid and click the trackpad it doesn't turn on

3) if i open the lid and click some letters it turns on (not always...)

4) if i open the lid and click the fingerprint button it turns on (not immediatly)

when i'm able to start my macbook i see the apple logo for some seconds (i only closed the lid at least 4 hours ago, i didn't turned it off) and i also have to retype the password to activate my fingerprint login.

Finally when i can enter to my macbook the apps are still opened like when i leaved it some hours ago.

HELP