Our plan is to dig a 25 x 60 foot pool, with the first 10 feet as a sunshelf for loungers and babies. We plan to have an automatic cover so we need loungers that can extend flat and fit under the cover (eliminates Ledge Loungers). 10 inches seems about right for babies to sit in the water but is it enough to stay wet in a lounger? Any idea where to get loungers that won't rust, are low enough to keep you wet in 10 inches (or whatever you recommend) and can extend flat for the auto-cover? Thanks for your help!