Re: my Penis ain't sleep well?
Are you concerned that your penis is too large when it is not erect? Based on the numbers you gave, it sounds like your penis is an average size. Some guys remain large even when they are not erect. Others become quite small. Both are completely normal. I think most guys would prefer to be large all the time but it is not up to us.
Depending on your culture, you may want to wear different clothes that are looser fitting if you think you are showing too much. Since you are 16, you are probably still going through puberty and your penis is still growing. It may continue for a few more years.
I hope that helps.