You aren’t a true citizen of the internet until you’ve bought a mattress in a box. Today only on Amazon, the 11" foam GhostBed Mattress is on sale for about 30% off.
These mattresses come with a 100 night trial, so if you don’t like it, they’l take it back. And if you do like it, you get a 20 year warranty too. Just remember that today’s prices are only available today, or until sold out.
Update: Though Amazon’s page mentions a 100 night trial, GhostBed’s site says that Amazon purchases can only be returned for 30 days.
Don’t forget your free popcorn!