NightWell:Smart Sleep Tracker
v5.3.35 · 100.9 MB · code 376
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File information
UpdatedFeb 26, 2026
PublishedMar 4, 2021
Packagejp.co.c2inc.deepsleep.pokemedi
Versionv5.3.35 (376)
Size100.9 MB
MD5b0d3332cd4a99ba722bba2a2732e3a00
Min SDK28
ABIsx86, x86-64, armeabi-v7a, arm64-v8a
Malware scanTRUSTED
Signature SHA14B:D1:78:C5:7C:B3:82:52:07:A6:34:DB:ED:A7:BF:B8:A3:F6:46:37
SignerCN=c2inc, OU=c2inc, O=c2inc, L=Bunkyoku, ST=Tokyo, C=ja
Total downloads1,000,000
This version1,000,000
Developer株式会社C2（C2, Inc.）
Age ratingEveryone
What's new in v5.3.35
Bug fix.
Security scan
TRUSTED
- Developer signature verified 2026-02-26
- Signature SHA1 4B:D1:78:C5:7C:B3:82:52:07:A6:34:DB:ED:A7:BF:B8:A3:F6:46:37
- File MD5 b0d3332cd4a99ba722bba2a2732e3a00
How to install NightWell:Smart Sleep Tracker v5.3.35 on Android 9 Pie+
Takes about 2 minutes. You'll need roughly 100.9 MB of free storage.
- Grab jp.co.c2inc.deepsleep.pokemedi_376.apk — hit the Download button above (100.9 MB). If your browser warns about APK files, choose Keep or Download anyway — that warning fires on every APK, not just this one.
- Trust your browser to install — on Android 8+ go to Settings → Apps → Special access → Install unknown apps, pick the app you downloaded with (Chrome, Firefox, Files, etc.), and flip Allow from this source. On older Android, toggle Unknown sources under Security.
- (Optional) Verify the file — compute the MD5 of the downloaded APK and make sure it matches b0d3332cd4a99ba7…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find jp.co.c2inc.deepsleep.pokemedi_376.apk in your Files app under Downloads, then tap it. Android's package installer will appear.
- Check the signer — the install screen will name the publisher. For this build it should read CN=c2inc, OU=c2inc, O=c2inc, L=Bunkyoku, ST=Tokyo, C=ja. If it doesn't match, cancel — you have the wrong file.
- Review permissions & tap Install — scroll the permission list, then confirm. If Play Protect flags it, tap Install anyway (this APK was scanned as TRUSTED).
- Done — open NightWell:Smart Sleep Tracker — tap Open on the install screen, or find the NightWell:Smart Sleep Tracker icon in your app drawer (this build targets x86/x86-64/armeabi-v7a/arm64-v8a devices).
Common install errors for NightWell:Smart Sleep Tracker
- "App not installed" — usually means an older or differently-signed version is already on your device. Uninstall it first, then retry. Your data may be lost unless you back it up.
- "Parse error" — the APK is for a newer Android than yours. This version needs Android 9 Pie or later. Pick an older build from the versions list below.
- "There was a problem parsing the package" — the download was interrupted. Delete the file and re-download over Wi-Fi.
- Works on one phone but not another — this build ships x86/x86-64/armeabi-v7a/arm64-v8a native code. Devices with a different CPU will reject it.