The cot does stay straight. It's either too high or too low. I love the concept but itn practice it is not working properly. I wish you have uncut videos and real pictures on how to install it
I've actually only used this in the car and it worked GREAT for keeping my 3 and 5 year old's toys from constantly falling on the floor during a long road trip. Our back seat is a little higher than the front, so their feet weren't elevated like in an airplane or in other types of cars (each car is different in that way), but we weren't looking for elevated feet. The huge winner was an area for them to keep their toys so they weren't getting lost in the seats or dropped on the floor so I had to search for them while we drove! The car adapter wrapped around the seat so we didn't feel it at all and it clipped and unclipped just like in the airplane....so it was super quick for getting in and out of the car! We just scooped the toys off the air cot when we stopped and we weren't digging them out of every crevice!