Blaze not registering sleep stages

[bob.ball5]

I can only get my Blaze to track sleep stages 50% of the time. I just don't buy that it's because of position on my wrist. I follow all the suggestions, charging it, wearing it above my wrist correctly and even cleaning it with alcohol wipes that was suggested the last time I called. My wife has an Alta and I think hers has not tracked sleep only once since she has had it for the last year. I'm wondering if it is definitely a problem with the Blaze wonder if others same problem.  Besides the sleep stages I love my Blaze and all that it does.

Moderator edit: subject for clarity

[AlejandraFitbit]

It's great to have you here @bob.ball5.

Thanks for troubleshooting this by yourself. There are a few scenarios where you might see your sleep pattern (which shows your time asleep, restless, and awake) instead of sleep stages:

• If you slept in a position that prevented your device from getting a consistent heart-rate reading or wore it too loosely. For best results, wear your device higher on your wrist (about 2-3 finger widths above your wrist bone). The band should feel secure but not too tight.
• If you used the Begin Sleep Now option in the Fitbit app (instead of simply wearing your device to bed). For more information on automatic sleep tracking, see How do I track my sleep?
• If you slept for less than 3 hours.
• If your device’s battery is critically low.

I hope this helps, catch you later.