I didn't have to do the sleep test, but what the others have said sounds right on to what I have read here.
In terms of pre-op diets, there seem to be as many out there as there are dr's

. I had to do two weeks of optifast protein shakes, plus non starchy vegetables only. Others do a version of this plus maybe a lean cuisine a day. Others don't have to do a pre-op diet and others seem to be on an Atkins type where they eat very few carbs and only lean protein. Your best bet is to contact the clinic you will be using. Length of time on pre-op diet also varies. The explanation I was given is that to make the surgery easier on you and the surgeon, they want you to lose as much weight as possible before surgery - mainly to shrink your liver, which they have to work around and move in order to attach the lap band.
I firmly belief that the unofficial reason is the clinic wants to see how committed you are - if you can't follow a two week plan, how are you going to manage the weeks of liquids and mushies after the surgery that are required for healing?
I have never had real problems taking pills, so I take them whole. I do have one huge pill (omega 3/6/9) that gets stuck about twice a week, but because it is fish oil, it usually slides down after a few minutes of intense pain. I am very stubborn and want to finish the whole costco bottle before I go to something else.

It sounds strange, but taking the pills with less water rather than more seems to make it easier for me to get them down. I only take one pill at a time and make sure it has passed before going on.
The good news is that since banding I have come off of two diabetes medications and a reflux medication and am down to a thryroid pill, a multivitamin and the dreaded Omega.
Many people either crush their medicines or invest in a pill splitter, or get chewable or liquid forms if they are available. You need to check with your pharmacist though as some medications shouldn't be crushed or split.