If you want to invest in good-for-the-planet and oh-so comfy organic cotton bedding, but can't afford the high price tags, think flash sale sites. Sites like Gilt.com, OneKingsLane.com and HauteLook.com work with designers to sell their excess inventory at a steep discount. These sales are for a short period of time, and when the inventory is gone, it's gone for good. The home decor sections for these sites often carry eco-friendly bedding that can be bought for a song. It's worth signing up for free and checking in periodically to see if your favorite green bedding line is on sale.