My MacBook Air will not turn on

I left my Mack book Air in sleep mode last night and Will not turn on this morning????

I connected the charger this morn and it is fully charged but it will not turn on this morn???

Portables that will not Power on.

http://support.apple.com/kb/TS1365

Go step by step.

Note: Steps 5 and 6

Reset SMC. http://support.apple.com/kb/HT3964

Choose the method for:

"Resetting SMC on portables with a battery you should not remove on your own"