Steven
Do a google search and you'll see several listings. Bed Bath and Beyond is a mall store that carries them.

Corine
They have some on Target's website. It says that most ship in 3 - 5 business days. They also have them on this website If you are really desperate, I own one that I only used for a couple of months after my son was born (2 years ago).

Jenny C
Hi, You can get a co-sleeper here Hope this helps.

Constant
I checked on ebay and there are Universal Co-Sleepers for sale. You can find them new (many people have ebay "stores") or gently used. Some of them even say "sold out elsewhere" in the description. If ebay's a no-go for you, you could try checking out other websites that provide online auctions as well. Hope that is helpful!