Is it okay to own a 6-hour sleep on Ambien?

I took a pill last dark at midnight (12am), and woke up at 6am 'cause I forgot to switch my alarm clock. Is it okay to hold a 6-hour sleep on Ambien, when I saw that I should take Ambien for a 7-8 hour sleep?
Answer:

Muscles hurt only after I've sit in a spa, I wake up up with ache several hours after being contained by a spa?

It's harder to wake up for work/school/whatever on Ambien if you haven't gotten the full 7-8 hours of sleep. But it won't hurt you.

Just pay attention not to mix it w/ alcohol. Ambien + liquor = strange hallucinations

Can a lab exam your blood for drugs without authorization?

I'm sure that it's perfectly fine. Medicines can't other be perfect. Just because you pocket it for a 7-8 hour sleep doesn't mean that it wont be a bit more or a little smaller quantity. I would say don't verbs about it. But if you're really worried ask the doctor who prescribed it to you.