Black Friday sales are here early with Target, Kohl's and Best Buy holding holiday events this weekend and Walmart kicking off a weeklong sale Monday. Why it matters: With less than three weeks to Thanksgiving,

Leaks of Black Friday ads are not a new phenomenon. Nor are pre-Black Friday sales. But just one week into November, many of the biggest retailers have already shown their hand. Walmart has announced its pre-Black Friday deals, as has Target. And others, including Home Depot and Kohl’s, have announced what specials they will offer on Black Friday.

November has arrived, and this year's Black Friday mattress deals are already starting to reveal themselves. Here are the best offers so far.