Charge 2 doesn't register Sleep Cycle

[Chickenchick]

Why won't my charge 2 register sleep cycles

Moderator edit: updated subject for clarity. 

[Rich_Laue]

Hello @Chickenchick first thing we want to know is what fitbit tells you. 

Tap sleep - Tap a night in question - Look under the graph for an answer. 

[Chickenchick]

As you can see last Saturday it read my sleep pattern. Nothing since then.
I'm wearing it the exact same this whole time. Please help

[Rich_Laue]

Sorry @Chickenchick I can not see, but I'll ask again. What does the fitbit Apkgive you for a reason. 

You need 3 hours of sleep and a consistant heart rate. 

[Chickenchick]

Says it couldn't get a consistent heart rate reading while I slept

[Rich_Laue]

There you go. I'm really not sure how to answer. I wear my band fairly loose and do get sleep stages. 

Things that may affect the heart rate. 

I know some colors in tattoos may affect the reading 

[Chickenchick]

I wear my device fairly snug.also it doesn't explain why it works
occasionally