I've had 4.
Unless you have a disability where you need help in the night, hubby would not be allowed to stay with you. For my studies, this was how it went.
1. Arrive with your overnight bag, pillow, extra blanket, etc.
2. Fill out paperwork, answer a questionaire about your sleep habits
3. Watch a video about sleep issues.
4. Around 9pm they tell you to get ready for bed
5. 1-2 people will come in and hook you up to sensors. They will be in your hair, along your collar bone, heart, legs. You will have an oxygen sensor in your nose and an sensor on your index finger. All of this is attached to a machine that is usually portable so that if you have to get up in the night you can without unhooking.
6. Then they tell you to go to sleep like normal.
7. If you are getting a split study to check for sleep apnea, they will come in after about 3 hours and hook you to a CPAP machine. If that happens they place a mask on your face. (breathe through your nose, keep your mouth closed. trust me.) Tell you to go back to sleep.
8. Around 5a or 7 hours after you got there, they wake you up. Ask you how tired you are. Have you fill out another questionaire. If they feel that you are not awake enough to drive home, they will have you stay until you are alert enough.
There may be a tv in your room, but there is no clock and the room is usually complete darkness during sleep. One place let me leave a bathroom light on, but the others didn't. You WILL have a way of contacting the technician. There may be a switch, but usually you just have to call out and they can hear you. That part is a bit weird. ;)
Tips:
1. Wear 2 piece pajamas, or t-shirt and shorts.
2. If you want a shower in the morning, let them know before you go to sleep.
3. They should have washcloths and such available so you can wash your face. You may have to ask for one.
4. You will have gel in several places in your hair. Take some wet ones to help wipe it out.
5. Take a hat or scarf to wear home.
6. When you get home you will probably want to take a shower and go back to bed.