mattress on the floor sounds good, but trust me, i've been there
many times, a bed with a storage space under is better

I got one of those.
If you want to get one, please stay the hell away from the
company known as A'frenz.
They offered me a good deal..... rather good worksmanship, and a
12-year warranty on the hydraulics (others offer 5 - 10 years).
But those idiots kept mucking up the colour scheme FOUR times in
a row.
Yes, I was forced to reject FOUR deliveries because the colour
scheme was wrong EVERY SINGLE TIME.