My new favorite places to go in the city are Korean day spas... Oh man, do you get pampered there and they do everything just right. JUVENEX is awesome-- its open 24/7. Its on 25 w32nd #646.733.1330 {area code still kicks me!}
They have a huge beautiful stone-like sauna and a steam room that reminds me of an igloo. Got a nice massage, cucumber facial. They leave you with a fruit snack at the end too, yum!
One of my friends went to another Korean day spa called SPADIUM {49 w32nd #967.3131} They have homemade herbal facials, full body milk rinses. Its family owned- they treat you like platinum.
I've had beautiful experiences at Equinox
http://www.equinoxfitness.com/spa/region/2 Excellent gym!!!
Janiette Day Spa is very laid-back. {58 13th St near Broadway #529.1616} Specializes in massages--- Oh! They have this incredible four hand massage>> one starts at the head, the other at the feet. I think 90 minutes was $100... soooooooo worth it!
http://jeniette.com/A bit pricey but a treat for me is the Valente Amethyst Hot Chakra Treatment at Gloss Day Spa. The amethyst is heated up and then they place it on all seven of the bodys energy spots. It was about $185 for 75 min. {??} Very "upper east side" >> I know you'll get that Stacey!
http://www.glossdayspa.com/pages/1/index.htmHope this helps-- enjoy!