Analyze properly as where you need to concentrate to improve the website....I did visit the websites that you have specified...and the second one did not open so try to fix that error.Try to get good uptime and load handling capacity for the websites as that is very important for any website owner.As far as the first website (foammattress) is considered the website design domain name and loading capacity is all fine.The business is also upto the trend and hence I thin with proper marketing you would be able to solve the issue.
Marketing is very important for any business...it gives the business a recognition.Marketing is of many means like Internet Marketing,Offline Marketing,banner ads,Mobile Marketing etc.Internet marketing involves E-mail marketing,SEO,article submission etc.Offline marketing includes providing newsletters,posts,through television ads.SEO includes usage of suggested keywords/topics and submission in major search engines.Mobile marketing includes tele-calling,SMS,MMS etc.There are providers like Thewebpole.com where they provide this email marketing service,SEO techniques to improve the business.
If you avail such professional service you will let known to the world in a faster way thereby competing with others in your business field.
You can also facilitate and run contests and giveaways via your web site, Blog and interact with your visitors, Develop a group in major social networking sites etc.