It's the regular and she does still fit. My reasoning to not get the large was that she'd probably be sleeping in a bed by the time she outgrew it. And we'd have the smaller one, so maybe easier to transport, etc. And I think that's how its working out, as she's been using a bed when available lately, but the peapod helps out in a pinch (like a hotel room with only one bed, etc.) I'd say it's getting tight for her, but she has no complaints. We just leave it unzipped now, so she has extra room to stretch, if needed.