I have a hiking buddy who loves his Backcountry Bed (not sure which model he has.)

As far as food, if you're not sure what you really need, try this. Find a park with a day's worth of trail (say, 10-15 miles) and a public campground. Load your pack with the minimum amount of food you think you need for a full day (breakfast, lunch, supper, snacks), and then put the rest of the food you now take in the car.

Drive to the public campground, rent a site, park the car, put your pack on and go take a day's hike. Eat lunch on the trail, have some snacks, and finish the day back at your campsite. Fix dinner from your pack, and enjoy the evening. Next morning, fix breakfast from your pack. If you're absolutely starving, you can get into your extra food in the car - and know how much more you need to carry. If you don't need to get into the extra, you know you don't need to pack it.

I find that I need about a pound of food a day - but that's me and my metabolism. Yours may very well be different.