Hi Vicky!
I'm glad things have been going well with the painting and color in your house! I'm also glad to hear that your instincts about color for your bedroom are good too! I agree, that a red wall with a red carpet sounds too intense, especially with the pinkish tones of Sand Dollar. A contrasting color like blue or gray blue sounds restful and soothing while creating interesting contrast to the red rug. Still, it may be tricky to find the right blue with this pinkish tone too. May I recommend looking at a warmer, more golden neutral like Sherwin-William 6106 Kilim Beige or even 6105 Divine White because they will balance better with blue tones. I like Divine White with 6234 Uncertain Gray, but also look at 6235 Foggy Day and 6242 Bracing Blue.
I'd love to see the before AND after photos so if you're having trouble posting them here, load them into www.flickr.com or some other public photo site and make a public folder so I can open it. When the folder is set up and loaded, copy and past the url link to me here on the Forum and I'll be able to see those photos.
I'd like to see after photos of the rest of your house too. You've been working really hard at this and I'd like to see what you've accomplished! Looking forward to it!