Come up with a hypothesis about the given situation.
A study of the effects of mobile phone usage on sleep.
One potential hypothesis for the given situation could be: Increased mobile phone usage, particularly before bedtime, is associated with reduced sleep quality and duration in individuals.
Complete the following task based on the instruction and optional input provided.### Instruction:
Come up with a hypothesis about the given situation.

### Input:
A study of the effects of mobile phone usage on sleep.

### Output:
One potential hypothesis for the given situation could be: Increased mobile phone usage, particularly before bedtime, is associated with reduced sleep quality and duration in individuals.