Investors focused on the Consumer Discretionary space have likely heard of Sleep Number (SNBR), but is the stock performing well in comparison to the rest of its sector peers? Let's take a closer look at the stock's year-to-date performance to find out.Sleep Number is a member of our Consumer Discretionary group, which includes 250 different companies and currently sits at #5 in the Zacks Sector Rank. The Zacks Sector Rank gauges the strength of our 16 individual sector groups by measuring the average Zacks Rank of the individual stocks within the groups.The Zacks Rank is a proven system that emphasizes earnings estimates and estimate revisions, highlighting a variety of stocks that are displaying the right characteristics to beat the market over the next one to three months. SNBR is currently sporting a Zacks Rank of #2 (Buy).Within the past quarter, the Zacks Consensus Estimate for SNBR's full-year earnings has moved 32.49% higher. This is a sign of improving analyst sentiment and a positive earnings outlook trend.Based on the latest available data, SNBR has gained about 0.89% so far this year. Meanwhile, stocks in the Consumer Discretionary group have lost about 1.22% on average. This means that Sleep Number is performing better than its sector in terms of year-to-date returns.Looking more specifically, SNBR belongs to the Furniture industry, a group that includes 7 individual stocks and currently sits at #18 in the Zacks Industry Rank. On average, stocks in this group have lost 0.36% this year, meaning that SNBR is performing better in terms of year-to-date returns.Going forward, investors interested in Consumer Discretionary stocks should continue to pay close attention to SNBR as it looks to continue its solid performance.Want the latest recommendations from Zacks Investment Research? Today, you can download 7 Best Stocks for the Next 30 Days. Click to get this free report Sleep Number Corporation (SNBR): Free Stock Analysis Report To read this article on Zacks.com click here.