From the Hotels.com site:
1. This offer is valid on a new booking of three (3) or more consecutive nights, for a total of $450 or more before taxes and fees at a participating Price Match Guarantee hotel. ( To use the coupon, you must book by 11:59 PM CT on June 27, 2011 in US currency on the US version of hotels.com or at 800-246-8357 for a stay to be completed by July 31, 2011. Package bookings, bookings made through a group travel service, and bookings made without this coupon code are not eligible.
2. There is a limit of one (1) coupon per booking and a limit of one (1) Kindle per booking. The coupon cannot be combined with other offers. Bookings are subject to availability and the hotel's terms and conditions.
3. Within two (2) weeks of your completed stay, you will receive an e-mail asking you to confirm the shipping address. Kindles will only be shipped to addresses in the 50 United States and the District of Columbia.
4. The Kindle will be shipped to you within six (6) weeks of your redemption request. The Kindle must be redeemed by September 30, 2011.
5. If you change travel dates after using the coupon, the coupon will only apply to the changed schedule if it complies with the requirements set forth above. If you cancel your stay, you will not receive a Kindle.
6. This coupon is not redeemable for cash, may not be transferred or sold, and is void where prohibited by law. This offer is subject to change at any time.