### Renters
If you’re renting:
* You may not be allowed to install alarms
* You might not trust old locks
* You need something reversible
Aluminum foil leaves no trace.
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### People Living Alone
Living alone can heighten nighttime anxiety, especially if:
* You’re in a new place
* You’ve had a past scare
* You work late hours and sleep deeply
Even a simple noise-based alert can help you sleep more comfortably.
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