Free Shipping Over $75. Big Shrimpy has used recycled materials to fill their beds since their beginning in 2001. They believe that good quality and design will help the environment even more than use of recycled materials. Because they make durable, washable beds and offer replacement parts, their beds last a darn long time. That’s not to say that if you have your Big Shrimpy bed long enough, you won’t have to replace the cover someday.