Looking for a Twin Mattress

Courtney Hartley is having her second baby soon, and is looking for a twin mattress so they can transition their oldest daughter out of her crib into a big-girl bed; the new baby can then have the crib. She has a frame, bedding, etc. already, she just needs the actual twin mattress. If you have a twin-size mattress in good condition that you'd like to part with, please email Courtney at courtneymhartley@gmail.com .

Thanks much.