I am also planning on buying an air mattress (twin size) for DS2 to keep in an OL. Based on this thread, it seems like it will fit in an OL with no problem. Based on other threads I searched through, it sounds like the inflated mattress will fit between a BCV king bed and the wall/sliding door, so this should work out nicely for keeping DS close by and somewhat corralled in the bedroom (as he will not sleep in a PnP).
So I am happy that those two questions were answered, but I feel like my head is going to explode

as I research which mattress to buy. Whether I am reading reviews about the expensive Aerobeds or cheaper brands, there are always complaints about poor quality and leaks. Since I am buying this with the intent to use for several years, I am really concerned about reliability. Although for use by a toddler for ~2 weeks a year, am I worrying too much? (As I wrote that, I am now wondering if a squirmy, kicking, active-sleeper toddler would be harder on a mattress than an adult, LOL!)
PP mentions using an inexpensive (~$30) mattress from Target for several years -- I would greatly appreciate anyone else's experience with air mattresses and their quality.
- What brand/model worked well for you?
- Does infrequent use and being folded up in an OL for most of the year affect their lifespan?
- Advantages & disadvantages of internal pump vs. External pump? I think an AC-powered pump would be best, so we don't have to rely on having batteries or having the adequate time needed to charge rechargable batteries. From what I've read so far, sounds like an internal pump may create extra stress on the mattress and make it prone to leaks (?) + the cords aren't long so you have to be close to an electrical outlet to inflate (?)
- Are any types of mattresses more compact than others (to conserve OL space)?
- Would outdoor models be more leak-proof? Are they less comfortable?
TIA!!