We actually bought the wrong size mattress for her cot the first time, so we have a spare for the floor lol.

Good to hear she took to it well! I can't really imagine an issue honestly, there'd be a side rail, a mattress on the floor, and she's usually already asleep when I put her in there.plus when she wakes at night it's really only maybe 1 in 10 times that she's standing up so I don't know that she'd really notice much.

Only problem may be getting tangled in her sleeping bag, I don't know if we should switch to sheets and quilt.