no ideas, sorry - but actually, I'd argue that $35 is not that much for it....I bought a new one for each of my births, and used them for at least one summer season afterwards. They're thick and tall, so comfy to lay on top of during contractions and strong enough to hold you up, and I'd be inclined to buy a new one for the birth to make sure there's no holes (presuming you're going to use it inside your home) as opposed to getting someone's used one. Also, it may be difficult to get one in this season, but I've had them order one in before - good luck!