I had one done about 7 years ago, full tummy tuck with muscle reconstruction.
I had a recliner in my bedroom - best thing ever. I slept in it for a month. I padded the back with a couple of old quilts.
Drains for a week - my husband stayed up with me the first night to empty them frequently. The first few days, I needed help to get up and use the toilet. No shower till after the drains came out. Yuck.
I agree about getting some good garment. I like Lipo in a Box ones. Wore them for at least 6 weeks all the time, then most of the time for a while. But at first you should be in a garment that they'll send you home in. It has velcro and holds your abs tight.
I would have a small fridge in your room for ginger ale, have some crackers (I couldn't eat for a day or so after the surgery, and got sick to my stomach from the pain med so switched to advil after a day or so).
They should put you on antibiotics that you'll start a day or so prior, just as a precaution.
I couldn't drive for two weeks. Then no exercise at all for at least 6 weeks. I really took it easy. I started working out with a trainer a year later, and my abs were much stronger after the surgery and recovery. Oh, and you will feel like you just did a million sit-ups for a long time after. It is sore, but the worst was the first 48 hours.
I also hired a friend to come take care of me and the kids for two weeks. I really couldn't even take care of myself for the first week, much less two small kids. You definitely will need help all the time at first. They'll need to track your pain medicine and drainage.