How to get rid of red eyes overnight?

I took a half hour nap and forgot to take my contacts out, so now my eyes are very bloodshot. Especially the left one. What can I do that will effectively make my eyes clear by morning? I'm not using visine and I don't have an aloe vera plant or cucumbers, if that helps. I tried a wet washcloth before when this happened and that didn't work either. Any suggestions? Thank you :)