Sleep Mode for a Mobile Phone
I have a suggestion.
I was thinking: Can there be a sleep mode feature in a mobile phone?
It can be very annoying when one receives calls while one is sleeping. But placing the mobile phone in silent mode while asleep is not the best solution as you can miss important calls.
There can be a sleep mode. It would be similar to silent mode, but when a call is received from certain numbers more than twice or thrice, the phone will ring. The logic is that when there is something important to convey, a person calls more than once. The owner of the mobile phone will be able to program multiple phone numbers to the sleep mode list.
Reward: I would like to receive the first phone with this feature.