Nothing spells relaxing like a big body of water, boating, and sunsets.  Why wait for a week of vacation when you can recreate a little of that atmosphere in your own home?  A nautically themed interior space can be crisp, clean and reminiscent of having your feet buried in the sand.  I like to minimize the use of primary colors and instead use shades of blue with natural tones, aged finishes, and antiques in nautical room design

John Robshaw Textiles has some of my favorite printed bedding and Lacefield Designs the most vast collection of decorative pillows.  Go Home Ltd has affordable and stylish accent furniture and accessories to help create that seaside atmosphere.

I suggest keeping the themed accessories to a minimum.  This pillow with an anchor is whimsical and perfect for the space but too much of a good thing is like having to explain the punch line of a joke.  Instead, opt for using unexpected furnishings like a locker-style cabinet or a side table with a chicken wire front to hint at a driftwood finish.  Look to art suppliers like Sugarboo Designs for printed artwork on vintage wood.