I received a Note 5 yesterday. My previous phone was an S5. It may just be me but it seems every time I buy a new phone, I have less control over it than I had with my previous phone. I am currently struggling with my Note 5. I just charged the phone and at 100%, disconnected the charger. However, after I put the phone in sleep mode, it came back on. I think I received a call I didn't notice after I had put the phone in sleep mode. How do I get the phone to take a nap when it's not been used for five minutes?