Depending on where you live, you may not be able to even get into a hospital unless you are very unstable, hearing voices, unable to care for yourself, suicidal or homicidal. Unfortunately, due to the government not wanting to subsidize psych beds, a lot of units have closed or downsized over the last decade.

I just got back from a 6-day stay following a very serious situation, but the emergency room where I went wasn't able to find a single bed available in my county, which is in a major metropolitan area. I had to be transported 45 miles to another county; that was the nearest open unit! I doubt seriously I would have been able to get in anywhere just to have meds adjusted, but it may be different where you live.

My first roommate was my age, but the girl who checked in the night before I left was only 18, and I am 45. They may or may not be able to accommodate your desire to have a like-aged roommate, but I wouldn't count on it.

In the unit I was on, which was very small, we were only allowed 3 changes of clothes, no sharps, no drawstrings, no shoelaces. If you didn't have appropriate clothing, you got to wear paper scrubs or fish leftovers out of the laundry room. Most everyone wore flip-flops or sock-slippers; no shoes.

We had various kinds of group therapy about 6 times a day; got to go outside on the patio for 15 minutes at a time about 6 times a day, and only had significant downtime in the evenings after PM goals group. They tend to discourage isolating (Gameboy) and encourage participation in scheduled activities.

Although the environment is low stress, a stay in a mental hospital is definitely not a vacation. Not that you're looking for one--just saying. The experience is nothing like you see in the movies.