If it is a matter of sleep for hindus then please have a look As per Hinduism a true Hindu is one who is awake in Brahma Muhoorat  do not sleep during that time Early Morning hours after  am is Brahma Muhoorat when a Hindu should not be sleeping
ADHAN IS A MATTER OF FEW MINUTES 
And according to science early wakeup keeps a person happy while sleeping till late spoils ones health
Wellit is a matter of fact in my area that some prayers in temples are held in early morning and chanting of mantras do take place on loudspeaker in the very early morning for quite a long time Though it is an area of more than  of muslims we never opposed it then why hindu orthodox destructive minds raising their eyebrows on a matter of only few minutes Azan is being recited for a couple of minutes Being a secular indian citizen its very much important to restrain these fascist forces and stop them to create an unhealthy environment for this secular and great country
OUR STATE IS SECULAR STATE Donot misuse the opportunity given to develop nation Make it dont break it Live and let others live peacefully