Update: Deal is dead. Hope you got in on it.

Today only, until 10 PM ET, Rocketmiles is offering its biggest bonus ever on hotel bookings: 5,000 bonus miles or points on any of its airline partners for stays that have a check out date before December 31, 2013.

This bonus is open to new and existing customers.

This bonus is large enough that on many Rocketmiles bookings made today, the miles earned will be worth almost as much as the price paid for the hotel room.

For those who don't know, Rocketmiles is a hotel booking site.