some times it may not turn on properly so press it once again you will be taken back to the sleep page press the spacebar once or twice and continue using your laptop. this type of issue is more common in hp laptops because sometimes they do not register the shut down properly which results in them staying in the sleep mode. and in some cases including mine the speaker start to make wired noise but there is nothing to worry about. this issue can come in cheap and expensive laptops(its just a wired thing with hp)