a lounge across a pool

[HSS]

“Well, I don't want to bother y'all,” she said. “I'm just going to lay over yonder with Karen and get some sun.” My wife was sitting on a lounge across the pool, watching our kids. Babs turned away to go over there.
('Everybody's All-American' by Frank Deford)

I can't seem to grasp this word here. Is this 'lounge' this chair?:
6. a sofa or couch, esp one with a headrest and no back (Collins Concise English Dictionary © HarperCollins Publishers)
How could you have a headrest and not a back?

And, how could a couch sprawl across a pool???

 

[e2efour]

The dictionary talks about a chair.
I am more familiar with lounger (on the other side of the pool).

 

[entangledbank]

A traditional sofa/couch has an open front, a long back, and two sides. You can lie on one, but you don't normally, because one side gets in the way of your head (or feet). A lounge is for lying on: it has no back or sides, but does have an angled end for your head to rest on.

I imagine 'across' must mean "on the other side of".

 

[HSS]

Oh, okay. When you say 'back,' you are seeing an upright back. I was thinking even if 'the back' was low at an angle, or level with the seat, you could still call it a back.

And 'across' --- it's over yonder ... it's on the opposite side of the pool.

Thanks!

 

[kentix]

It's an odd dictionary description to me. But clearly it was poolside furniture on the other side of the pool.