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Sleep Cycle alarm clock

Sleep Cycle alarm clock
  • #: 3274
  • Price: $0.99 In Apple Store
  • Category: Health & Fitness
  • Updated: 2010-11-12
  • Current Version: 3.0
  • 3.0 (iOS 4.0 Tested)
  • Size: 6.80 MB
  • Language: English
  • Seller: Maciek Drejak Labs
  • Requirements: Compatible with iPhone, iPod touch, and iPad. Requires iOS 3.0 or later
  • © 2010 Maciek Drejak Labs AB
  •  Add to Favorite apps



An alarm clock that analyzes your sleep patterns and wakes you in the lightest sleep phase - a natural way to wake up where you feel rested and relaxed.We are now helping more than 100 000 people to wake up rested!#1 Top Paid app in Japan #1 Top Paid….. Read more

What's New in Version 3.0

Major improvements:
+ intelligent snooze
+ adjustable wake up phase length
anything from 0 minutes (regular alarm clock mode) to 10, 15, 20, 30, 45, 60 and 90 minutes
+ Sleep Cycle is now up to 5x more sensitive to your movement
this is great news because better sensitivity means better wake ups
+ no need to recalibrate Sleep Cycle when changing bed, pillow or mattress anymore
+ full support for the iPod touch
+ full iPhone 4 retina resolution support
+ possibility to use music from your iPod library as alarm sound
+ Sleep Cycle no longer mutes music or audiobooks that are playing in the background
+ no alarm mode - use Sleep Cycle to graph your sleep, without using the alarm

Also improved:
+ added swipe to navigate between graphs
+ added vibration settings ("As Backup", "No vibration", "Only vibrate")
+ more detailed and smoother sleep graphs
+ improved performance
+ screen now fades to black on iPod touches when the device is placed with the glass down
+ advanced accelerometer calibration
Sleep Cycle needs one or two nights to automatically calibrate to your accelerometer
+ updated graphics for buttons and other UI elements
+ added a regular alarm clock sound in addition to the normal wake up melodies
+ if you shut down Sleep Cycle during the night and start it up again it will continue on the same graph
+ warning shown on nights that are too short (less than 2.5 hours)
+ warning shown on nights that Sleep Cycle has sensed no or very little movement
+ small gray line below sleep graph to indicate when the alarm window started
+ calculation of average total time is now done in background
+ possibility to log out from Facebook (button in advanced settings)
+ added a default subject line when sharing graph by email
+ removed "dreaming" from graph legend
we've done a lot of research around this with help from sleep scientists and determined that
Sleep Cycle cannot reliably detect when you are in REM sleep
+ fixed bug: fixed problems with non-gregorian calendars (like thai and japanese calendars)
+ fixed bug: AM/PM being clipped in statistics view
+ fixed bug: navigation arrows in statistics are now always correctly dimmed
+ fixed bug: correct day of week displayed in statistics
+ fixed bug: accelerometer was too sensitive on some devices producing incorrect sleep graphs
this is fixed by calibrating to the accelerometer during the first two nights
+ fixed bug: when shutting off the alarm the home-button now works even if the iPhone is covered by a sheet (proximity sensor problem)
+ fixed bug: problem when posting to Facebook when user has changed Facebook password
+ fixed bug: crash when trying to share graph by email and no email accounts where set up

iPhone Screenshots

Sleep Cycle alarm clock iPhone Screenshot 1
Sleep Cycle alarm clock iPhone Screenshot 2
Sleep Cycle alarm clock iPhone Screenshot 3
Sleep Cycle alarm clock iPhone Screenshot 4

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Customer reviews

Rated 1/5 based on 3 customer reviews.


3/5 stars
Comparing sleep phases alarm clocks

I`ve compared the three sleep phases in the Appstore:
Sleep Cycle Alarm Clock ($1)
Siesta smart alarm ($2)
Absalt EasyWakeup ($10)

Absalt 10/10
Siesta smart alarm: 4/10
Sleep Cycle: 7/10

Absalt is a stick-out as far as this characteristic is concerned. It has the function to set everything, including sensitivity, time of fade-in. Sleep Cycle lets publish the statistics in Facebook, though I don`t use this. Siesta smart alarm also has plenty of settings, but they are either unclear or unnecessary, and you can`t use the music from IPod library.

Absalt 10/10
Siesta smart alarm 1/10
Sleep Cycle 8/10

I liked Absalt design. Nicely fashioned and well sorted instruction alone stands high. Apparently the alarm design has been worked out by professionals.
Sleep Cycle has a nice design, but some elements look amateur (i.e. night screen saver).
I`d rather not speak about Siesta smart alarm.

Absalt 8/10
Siesta smart alarm 2/10
Sleep Cycle 8/10

Plenty of functions in Absalt make it a little difficult to use it.
Siesta is extremely uneasy to use, while Sleep Cycle has a much simpler construction.

Absalt 10/10
Siesta smart alarm 10/10
Sleep Cycle 1/10

I began my acquaintance with such alarm clocks from Sleep Cycle. I`ve been used it for about a week and once in the morning I discovered that my mobile phone was bitterly hot. And once I`ve even missed my work because my alarm clock hasn`t gone off. I suppose it`s unacceptable for alarm clocks at all. After all, what`s the good of dozens of functions and nice design, if the alarm clock hasn`t gone off in time? No claims to the other two.

Absalt 9/10
Siesta smart alarm 2/10
Sleep Cycle 5/10

IN one word, buy Absalt, if you can afford it, or Sleep Cycle as an alternative, but then I recommend you to set one more alarm clock apart from the one in your mobile phone.

0/5 stars

I like most of us was intrigued my the technology, data and potential for feeling better in the morning. The problem is, this app is SNAKE OIL....it's a lie. When placed on a table far away from you it will create a nice movement graph as if you have gone through sleep cycles all night. It will also awaken you at a random time. And this is based on WHAT?

Apple, I'm sure this is a good revenue maker for you but, COME ON...PULL IT OFF YOUR STORE.

0/5 stars
It's a joke!

I loved this app for a while until I discovered its a huge joke... I left my phone far away from me on the floor as well as on a dresser two nights in a row and magically I have a sleep cycle graph! Don't waste your money.

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