Hi Normrnha1,
Welcome to the Heartland Owners Forum and hopefully to the family. We have a great bunch of people here with lots of information and all willing to share their knowledge when needed.
I'm sure you will have some storage under the bed, but how much I don't know. Our first Bighorn had a lot,,, the second one was cut way down,, only about 4-5" deep. But some mods can be make in most cases. I, like some others removed the panel, checked for clearance on rams and mechanics of slide and cut a couple of holes in the panel and put baskets in supported by the panel under the bed. Good for a blankets or something like that or whatever. Wife wanted it in ours... so I did the deed,,, removed and cut, cleaned, bought the baskets..installed it. ... Now,,Guess what???? There is nothing in either one... empty..
Enjoy the forum and join us for some camping.
Jim M