Start with safety, not a claimed perfect distance
Follow the safety instructions for your actual iPhone, charger and room. Apple says to keep the phone, adapter and wireless charger ventilated during use or charging, and not to sleep on or cover powered equipment with a pillow, blanket or your body. An uncovered bedside surface can be a candidate; it is not automatically suitable if bedding, a spill, a pet or a dangling cable can reach it.
Inspect the whole arrangement while awake. Keep the device secure on its surface and check where its cable and adapter sit. Do not tuck a microphone under a pillow to make a voice louder. Do not move prescribed medical equipment or disconnect it to make the recording quieter. If you use an implanted medical device, follow your clinician and device manufacturer’s guidance about nearby electronics.
A simple floor-plan note is enough: “right bedside surface; phone uncovered; fan near door.” No centimetre measurement in this guide has been validated for Noctory. A short listening test checks audible conditions, not electrical safety or sleep-monitor accuracy.
Use an awake test to isolate one change
Use a recorder you know how to stop and replay. Check its permissions and any free-use allowance before a test; a short session may count against an app’s recording allowance. With everyone’s agreement, speak the same ordinary sentence from the same position while awake, stop, and listen. Do not record another person secretly.
Compare two safe arrangements while changing only one factor: placement, for example. Keep the speaker position and normal room equipment unchanged. Save plain observations such as “words audible; fan steady” or “movement knocks dominate.” Avoid treating playback loudness as a measured decibel level. A clearer voice test does not prove snoring detection or identify the source of every overnight sound.
| Test | Arrangement | What replay reveals | Next step |
|---|---|---|---|
| A | Uncovered right bedside surface; fan in normal position | Sentence audible; steady fan underneath | Keep as a reproducible baseline |
| B | Another stable uncovered surface; fan unchanged | Sentence softer; no new knocks | Choose based on usable replay, not a score |
| C | Baseline placement repeated after moving an unrelated loose object | Sentence audible; tapping noise absent | Record which object moved; do not infer better sleep |
The third test changes a room-noise source rather than placement; label it separately. Do not combine several improvements and claim that distance alone caused the result. If the recording fails, write “no usable file” and retry the setup rather than inventing a quiet night.
Keep nighttime context with the clips
Before bed, note the chosen surface, whether the normal fan or sound machine is operating, who has agreed to recording, and any unusual background event. In the morning, add the recording start/stop times and interruptions you actually know. If the phone moved, mark that night as a changed setup.
Listen to a clip before naming it. A nearby person, a pet, traffic or an appliance can contribute sound. “Possible source” and “confirmed source while awake” are different labels. A sound-classification label cannot establish who made a noise or whether a person was asleep.
Use similar setups when comparing nights, and retain exceptions. More labeled clips could reflect a different room, sensitivity or recording duration; it is not proof that health worsened. If you have breathing or sleep concerns, discuss them with a healthcare professional instead of using this placement sheet to diagnose or exclude a condition.
Where Noctory fits
Noctory’s current US listing describes overnight recording, labeled sound clips, nights, insights and optional audio sharing. It warns that labels can be inaccurate and that the app is not a medical device. It does not publish a validated best microphone distance or promise clinical accuracy. Check current recording allowances and paid features in the app; this listing does not fully specify them.
Review Noctory’s current recording and optional AI privacy information before using those features. Optional audio labeling can share selected excerpts with a third-party AI service after permission; do not treat a locally stored full recording as proof that no excerpt can leave the device. This CSV is a separate setup record, not a Noctory import or a validated sensor test.
If the method fits your task, explore Noctory’s listed features on an iPhone. Check current features and plans before downloading.
See Noctory for iOSDownload the free worksheet
Use the CSV in Numbers, Excel or a spreadsheet editor. Three fictional awake-test rows plus a blank row; no decibel score, medical result or app-import format. Replace them with your own observations. The CSV is separate from the app and no email is required.
Questions answered
Should I put the phone under a pillow?
Do not cover powered equipment with bedding. Follow Apple’s ventilation and heat-exposure guidance for the phone and charger.
What distance gives accurate snoring results?
This guide has no validated distance or clinical accuracy claim. Use a safe, repeatable setup and listen to an awake test.
Does no recorded snoring mean no sleep problem?
No. Recording and sound labels cannot diagnose or rule out a sleep disorder.
Continue with Noctory on iOS
Use the App Store listing to check compatibility, privacy information and current plan terms. A free download may offer paid features.
Download Noctory for iOSSources and product details
- Apple: important iPhone safety informationVentilation and prolonged heat exposure; checked October 12, 2026.
- Apple: possible interference with medical devicesFollow clinician and medical-device manufacturer guidance; no universal clinical placement advice here.
- Noctory on the App StoreCurrent US App Store product description; checked October 12, 2026.
Editorial method: primary guidance, a current Apple listing, an original worked example and an independent critique. No search ranking, install or outcome result is claimed.