Thats my philosophy too. We're renting the single stroller and crib for DD2 (at time of travel) in May 07. I think its so important for everyone to get a good nights rest - it makes such a difference. I did flirt w/getting a toddler bed since she'll be 2 but she sleeps in a crib at home and I thought she'd get up and roam around at night.
Also - the strollers at the park do not recline! Thats big for us. I will rent a double as well for the older two just in case.
Have a great time!
I know that they provide bedding but I think I will bring some of my own sheets, what are you thinking about this?