The back-up is a shotgun rack that slips between the mattress and box springs and places your shotgun right at hand. I've checked out the site before and it was $39.95 the last time I checked, but this month they have it for $25.95 plus S&H. Shipping was $5 to me. I'd have missed the sale price but they were one of the stories on today's Attack Of The Show.
https://www.the-backup.com/default.aspx
Standard disclaimer - Kid-free homes only - lock up the shotgun if you have kids in the house.