90night: SleepyTime Calculator Application icon

90night: SleepyTime Calculator 3.0

465.9 KB / 50K+ Downloads / Rating 4.7 - 2,024 reviews


See previous versions

90night: SleepyTime Calculator, developed and published by Jonathan Nakhla, has released its latest version, 3.0, on 2013-04-07. This app falls under the Health & Fitness category on the Google Play Store and has achieved over 50000 installs. It currently holds an overall rating of 4.7, based on 2.024 reviews.

90night: SleepyTime Calculator APK available on this page is compatible with all Android devices that meet the required specifications (Android 2.3+). It can also be installed on PC and Mac using an Android emulator such as Bluestacks, LDPlayer, and others.

Read More

App Screenshot

App Screenshot

App Details

Package name: com.jonathannakhla.sleeptimecalculator

Updated: 12 years ago

Developer Name: Jonathan Nakhla

Category: Health & Fitness

New features: Show more

App Permissions: Show more

Installation Instructions

This article outlines two straightforward methods for installing 90night: SleepyTime Calculator on PC Windows and Mac.

Using BlueStacks

  1. Download the APK/XAPK file from this page.
  2. Install BlueStacks by visiting http://bluestacks.com.
  3. Open the APK/XAPK file by double-clicking it. This action will launch BlueStacks and begin the application's installation. If the APK file does not automatically open with BlueStacks, right-click on it and select 'Open with...', then navigate to BlueStacks. Alternatively, you can drag-and-drop the APK file onto the BlueStacks home screen.
  4. Wait a few seconds for the installation to complete. Once done, the installed app will appear on the BlueStacks home screen. Click its icon to start using the application.

Using LDPlayer

  1. Download and install LDPlayer from https://www.ldplayer.net.
  2. Drag the APK/XAPK file directly into LDPlayer.

If you have any questions, please don't hesitate to contact us.

App Rating

4.7
Total 2,024 reviews

Reviews

4 ★, on 2019-10-18
Works well. Calculates the sleep cycles and sets the alarm. I like the options for extra alarms. Just what I was looking for.

5 ★, on 2020-02-29
It's a simple concept, but it makes a world of difference. Really like the way it makes alarm for the next morning.

5 ★, on 2019-01-22
Been using it for years! Great little app!

5 ★, on 2019-06-20
I use it almost every night. Simple and effective.

5 ★, on 2018-11-12
Great app, it really works !!

5 ★, on 2018-12-10
This combined with Alarmy has changed my life.

Previous Versions

90night: SleepyTime Calculator 3.0
2013-04-07 / 465.9 KB / Android 2.3+

About this app

Do you ever find yourself waking up feeling cranky even though you had a decent amount of sleep?

Or have you taken a nap and felt great one time yet felt horrible another time?

The reason for such scenarios is that you most likely woke up in the middle of one of your sleeping cycles.

Sleeping works in cycles of 90 minutes. That is why you might get a good amount of sleep yet still feel tired (because you most likely woke up in the middle of one of your sleep cycle).

With 90night you can calculate the times you can wake up if you know when you are going to sleep or you can calculate the times you can go to sleep if you know when you are waking up. It also provides you buttons you can press that can set an alarm for you using your preferred alarm app.

Features that 90night includes:
[✔]The ability to set how long it takes you to fall asleep and 90night will use that time in its calculations
[✔]Support for both 12/24 hour format (with the ability to change them)
[✔]A night mode for using a dark theme for the app to avoid straining your eyes in the dark
[✔]Buttons to set alarms for each time (with optional confirm dialog box which can be turned on in settings
[✔]The option to automatically add extra snooze alarms after you set the original alarm (with the option to pick how many alarms you want and the interval between the alarms)
[✔]NEW: Dashclock extension to show you your sleep times right from your lock screen!

What's different in Plus version:
[✔]No advertisements!
[✔]Ability to use shortcuts without sharing the app
[✔]Extra features coming soon!

Permissions Explained:
• Network communications: Used for ads
• Alarm: For setting your alarm

FAQ:
Q: Why doesn't 90night have an option to delete alarms?
A: Because as the developer, I am not given permission or the ability (through the API) to go inside alarm apps and delete alarms. There are a few alarm applications out there that automatically remove alarms after they have gone off.
Q: Why is the app called 90night?
A: It's actually a play on words! A sleep cycle is 90 minutes long and sleeping happens at night and when the name of 90night [90 night, ninety night] is read out loud it sounds like "nighty night!"

If you have any questions, requests, bugs/issues, or features you want, feel free to email me.

Logo and banner made by Sam Nalty. Visit his blog http://holothere.tumblr.com/ for holo designs.

New features

*3.0*
•Added shortcuts! Now you can find out when to go to sleep without having to open up the app and inputting the time (free users need to share 90night to use shortcuts)
•Added a setting page for the DashClock extension which includes the ability to make the extension visible during specific time intervals
*Previous updates*
•Added a new "go to bed now" option.
•Added a Dashclock extension!
•New Holo UI (with recent update for 7 inch tablets such as Nexus 7)!!

App Permissions

Allows applications to open network sockets.
Allows applications to access information about networks.