While I didn't have a 2430 we did have a 2400W. The snaps are to push and pull the mattress halves in and out with the slide out. If you undo the snaps you get to manually move the mattress halves around....guess how I know.
Our 2400W had very limited space under the bed that was accessed via a cabinet door. It also had an inset at the foot of the bed for storage. That was all the storage it had under the bed. I just found a couple pictures on the web, see attached, that show how ours was set up.
When I looked under the hinged area it was basically wasted space with a lot of wiring and plumbing.
Hope this helps...