I am a new goldfish owner and my fish have started doing something they never did before.
They are all hanging around the bottom alot of the time. They almost look like they're sleeping. Is this normal or is there a problem.

Hi Rochelle and welcome.

It is not normal for fish to sit on the bottom, that is usually an indication something is wrong. We have a wonderful diagnosis area, I am going to move your thread there.
You will see (at the begining of that forum) a red box with questions, we need for you to answer all the questions in that box.
This helps us to help you and your fish.

Welcome aboard.